Home / 1,347,991,992.40-2,021,987,988.60-530,130,974.80

Finding the Fourth Proportional to 1,347,991,992.40, 2,021,987,988.60 and 530,130,974.80

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Solution

The fourth proportional to 1,347,991,992.40, 2,021,987,988.60 and 530,130,974.80 is: 795,196,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,991,992.40 : 2,021,987,988.60 = 530,130,974.80 : x
  2. Step 2: Convert to fraction form
    1,347,991,992.40/2,021,987,988.60 = 530,130,974.80/x
  3. Step 3: Cross multiply
    1,347,991,992.40x = 2,021,987,988.60 × 530,130,974.80
  4. Step 4: Simplify right side
    1,347,991,992.40x = 1,071,918,463,430,409,216
  5. Step 5: Solve for x
    x = 1,071,918,463,430,409,216/1,347,991,992.40
  6. Step 6: Final answer
    x = 795,196,462.20

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Double scale
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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.