Home / 78,317,141.37-108,071,328.17-45,279,519.90

Finding the Fourth Proportional to 78,317,141.37, 108,071,328.17 and 45,279,519.90

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Solution

The fourth proportional to 78,317,141.37, 108,071,328.17 and 45,279,519.90 is: 62,482,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317,141.37 : 108,071,328.17 = 45,279,519.90 : x
  2. Step 2: Convert to fraction form
    78,317,141.37/108,071,328.17 = 45,279,519.90/x
  3. Step 3: Cross multiply
    78,317,141.37x = 108,071,328.17 × 45,279,519.90
  4. Step 4: Simplify right side
    78,317,141.37x = 4,893,417,854,266,548
  5. Step 5: Solve for x
    x = 4,893,417,854,266,548/78,317,141.37
  6. Step 6: Final answer
    x = 62,482,079.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.