Home / 1,018,487,439.82-1,527,901,276.20-318,840,339.54

Finding the Fourth Proportional to 1,018,487,439.82, 1,527,901,276.20 and 318,840,339.54

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Solution

The fourth proportional to 1,018,487,439.82, 1,527,901,276.20 and 318,840,339.54 is: 478,313,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,487,439.82 : 1,527,901,276.20 = 318,840,339.54 : x
  2. Step 2: Convert to fraction form
    1,018,487,439.82/1,527,901,276.20 = 318,840,339.54/x
  3. Step 3: Cross multiply
    1,018,487,439.82x = 1,527,901,276.20 × 318,840,339.54
  4. Step 4: Simplify right side
    1,018,487,439.82x = 487,156,561,688,387,072
  5. Step 5: Solve for x
    x = 487,156,561,688,387,072/1,018,487,439.82
  6. Step 6: Final answer
    x = 478,313,764.75

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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.