Home / 82,247,473.40-123,371,210.10-31,131,159.80

Finding the Fourth Proportional to 82,247,473.40, 123,371,210.10 and 31,131,159.80

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Solution

The fourth proportional to 82,247,473.40, 123,371,210.10 and 31,131,159.80 is: 46,696,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,247,473.40 : 123,371,210.10 = 31,131,159.80 : x
  2. Step 2: Convert to fraction form
    82,247,473.40/123,371,210.10 = 31,131,159.80/x
  3. Step 3: Cross multiply
    82,247,473.40x = 123,371,210.10 × 31,131,159.80
  4. Step 4: Simplify right side
    82,247,473.40x = 3,840,688,856,342,474
  5. Step 5: Solve for x
    x = 3,840,688,856,342,474/82,247,473.40
  6. Step 6: Final answer
    x = 46,696,739.70

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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.