Home / 78,732,175.58-118,098,263.36-71,551,817.18

Finding the Fourth Proportional to 78,732,175.58, 118,098,263.36 and 71,551,817.18

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Solution

The fourth proportional to 78,732,175.58, 118,098,263.36 and 71,551,817.18 is: 107,327,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,175.58 : 118,098,263.36 = 71,551,817.18 : x
  2. Step 2: Convert to fraction form
    78,732,175.58/118,098,263.36 = 71,551,817.18/x
  3. Step 3: Cross multiply
    78,732,175.58x = 118,098,263.36 × 71,551,817.18
  4. Step 4: Simplify right side
    78,732,175.58x = 8,450,145,348,798,600
  5. Step 5: Solve for x
    x = 8,450,145,348,798,600/78,732,175.58
  6. Step 6: Final answer
    x = 107,327,725.76

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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.