Home / 82,449,420.30-123,721,369.65-31,368,098.70

Finding the Fourth Proportional to 82,449,420.30, 123,721,369.65 and 31,368,098.70

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Solution

The fourth proportional to 82,449,420.30, 123,721,369.65 and 31,368,098.70 is: 47,070,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,449,420.30 : 123,721,369.65 = 31,368,098.70 : x
  2. Step 2: Convert to fraction form
    82,449,420.30/123,721,369.65 = 31,368,098.70/x
  3. Step 3: Cross multiply
    82,449,420.30x = 123,721,369.65 × 31,368,098.70
  4. Step 4: Simplify right side
    82,449,420.30x = 3,880,904,134,480,384.50
  5. Step 5: Solve for x
    x = 3,880,904,134,480,384.50/82,449,420.30
  6. Step 6: Final answer
    x = 47,070,120.33

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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.