Home / 1,090,338,609.60-1,635,507,914.40-660,356,913.60

Finding the Fourth Proportional to 1,090,338,609.60, 1,635,507,914.40 and 660,356,913.60

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Solution

The fourth proportional to 1,090,338,609.60, 1,635,507,914.40 and 660,356,913.60 is: 990,535,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,338,609.60 : 1,635,507,914.40 = 660,356,913.60 : x
  2. Step 2: Convert to fraction form
    1,090,338,609.60/1,635,507,914.40 = 660,356,913.60/x
  3. Step 3: Cross multiply
    1,090,338,609.60x = 1,635,507,914.40 × 660,356,913.60
  4. Step 4: Simplify right side
    1,090,338,609.60x = 1,080,018,958,521,557,120
  5. Step 5: Solve for x
    x = 1,080,018,958,521,557,120/1,090,338,609.60
  6. Step 6: Final answer
    x = 990,535,370.40

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Half scale
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Double scale
Find fourth proportional to 1,090,338,610.60, 1,635,507,915.90 and 660,356,914.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.