Home / 78,888,546.31-108,877,008.69-45,397,337.08

Finding the Fourth Proportional to 78,888,546.31, 108,877,008.69 and 45,397,337.08

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Solution

The fourth proportional to 78,888,546.31, 108,877,008.69 and 45,397,337.08 is: 62,654,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,546.31 : 108,877,008.69 = 45,397,337.08 : x
  2. Step 2: Convert to fraction form
    78,888,546.31/108,877,008.69 = 45,397,337.08/x
  3. Step 3: Cross multiply
    78,888,546.31x = 108,877,008.69 × 45,397,337.08
  4. Step 4: Simplify right side
    78,888,546.31x = 4,942,726,263,762,019
  5. Step 5: Solve for x
    x = 4,942,726,263,762,019/78,888,546.31
  6. Step 6: Final answer
    x = 62,654,548.66

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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.