Home / 521,444,891.70-782,167,337.55-437,264,637.30

Finding the Fourth Proportional to 521,444,891.70, 782,167,337.55 and 437,264,637.30

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Solution

The fourth proportional to 521,444,891.70, 782,167,337.55 and 437,264,637.30 is: 655,896,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,444,891.70 : 782,167,337.55 = 437,264,637.30 : x
  2. Step 2: Convert to fraction form
    521,444,891.70/782,167,337.55 = 437,264,637.30/x
  3. Step 3: Cross multiply
    521,444,891.70x = 782,167,337.55 × 437,264,637.30
  4. Step 4: Simplify right side
    521,444,891.70x = 342,014,117,161,707,392
  5. Step 5: Solve for x
    x = 342,014,117,161,707,392/521,444,891.70
  6. Step 6: Final answer
    x = 655,896,955.95

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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.