Home / 501,425,999.40-752,138,999.10-386,634,743.40

Finding the Fourth Proportional to 501,425,999.40, 752,138,999.10 and 386,634,743.40

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Solution

The fourth proportional to 501,425,999.40, 752,138,999.10 and 386,634,743.40 is: 579,952,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,425,999.40 : 752,138,999.10 = 386,634,743.40 : x
  2. Step 2: Convert to fraction form
    501,425,999.40/752,138,999.10 = 386,634,743.40/x
  3. Step 3: Cross multiply
    501,425,999.40x = 752,138,999.10 × 386,634,743.40
  4. Step 4: Simplify right side
    501,425,999.40x = 290,803,068,918,161,344
  5. Step 5: Solve for x
    x = 290,803,068,918,161,344/501,425,999.40
  6. Step 6: Final answer
    x = 579,952,115.10

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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.