Home / 438,327,006.40-656,232,218.40-425,744,094.40

Finding the Fourth Proportional to 438,327,006.40, 656,232,218.40 and 425,744,094.40

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Solution

The fourth proportional to 438,327,006.40, 656,232,218.40 and 425,744,094.40 is: 637,393,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,327,006.40 : 656,232,218.40 = 425,744,094.40 : x
  2. Step 2: Convert to fraction form
    438,327,006.40/656,232,218.40 = 425,744,094.40/x
  3. Step 3: Cross multiply
    438,327,006.40x = 656,232,218.40 × 425,744,094.40
  4. Step 4: Simplify right side
    438,327,006.40x = 279,386,991,538,810,976
  5. Step 5: Solve for x
    x = 279,386,991,538,810,976/438,327,006.40
  6. Step 6: Final answer
    x = 637,393,971.76

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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.