Home / 613,932,507.68-921,189,184.18-318,670,711.52

Finding the Fourth Proportional to 613,932,507.68, 921,189,184.18 and 318,670,711.52

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Solution

The fourth proportional to 613,932,507.68, 921,189,184.18 and 318,670,711.52 is: 478,156,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,932,507.68 : 921,189,184.18 = 318,670,711.52 : x
  2. Step 2: Convert to fraction form
    613,932,507.68/921,189,184.18 = 318,670,711.52/x
  3. Step 3: Cross multiply
    613,932,507.68x = 921,189,184.18 × 318,670,711.52
  4. Step 4: Simplify right side
    613,932,507.68x = 293,556,012,761,772,672
  5. Step 5: Solve for x
    x = 293,556,012,761,772,672/613,932,507.68
  6. Step 6: Final answer
    x = 478,156,815.43

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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.