Home / 1,090,026,350.40-1,635,062,751.36-390,564,177.60

Finding the Fourth Proportional to 1,090,026,350.40, 1,635,062,751.36 and 390,564,177.60

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Solution

The fourth proportional to 1,090,026,350.40, 1,635,062,751.36 and 390,564,177.60 is: 585,854,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,026,350.40 : 1,635,062,751.36 = 390,564,177.60 : x
  2. Step 2: Convert to fraction form
    1,090,026,350.40/1,635,062,751.36 = 390,564,177.60/x
  3. Step 3: Cross multiply
    1,090,026,350.40x = 1,635,062,751.36 × 390,564,177.60
  4. Step 4: Simplify right side
    1,090,026,350.40x = 638,596,938,809,311,616
  5. Step 5: Solve for x
    x = 638,596,938,809,311,616/1,090,026,350.40
  6. Step 6: Final answer
    x = 585,854,588.35

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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.