Home / 78,317,116-108,071,293.80-45,279,494.76

Finding the Fourth Proportional to 78,317,116, 108,071,293.80 and 45,279,494.76

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Solution

The fourth proportional to 78,317,116, 108,071,293.80 and 45,279,494.76 is: 62,482,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,317,116 : 108,071,293.80 = 45,279,494.76 : x
  2. Step 2: Convert to fraction form
    78,317,116/108,071,293.80 = 45,279,494.76/x
  3. Step 3: Cross multiply
    78,317,116x = 108,071,293.80 × 45,279,494.76
  4. Step 4: Simplify right side
    78,317,116x = 4,893,413,581,323,520
  5. Step 5: Solve for x
    x = 4,893,413,581,323,520/78,317,116
  6. Step 6: Final answer
    x = 62,482,045.19

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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.