Home / 679,536,921.60-1,018,659,663.36-433,202,158.08

Finding the Fourth Proportional to 679,536,921.60, 1,018,659,663.36 and 433,202,158.08

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Solution

The fourth proportional to 679,536,921.60, 1,018,659,663.36 and 433,202,158.08 is: 649,391,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,536,921.60 : 1,018,659,663.36 = 433,202,158.08 : x
  2. Step 2: Convert to fraction form
    679,536,921.60/1,018,659,663.36 = 433,202,158.08/x
  3. Step 3: Cross multiply
    679,536,921.60x = 1,018,659,663.36 × 433,202,158.08
  4. Step 4: Simplify right side
    679,536,921.60x = 441,285,564,516,598,272
  5. Step 5: Solve for x
    x = 441,285,564,516,598,272/679,536,921.60
  6. Step 6: Final answer
    x = 649,391,593.73

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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.