Home / 78,808,064.94-118,212,091.20-39,940,463.16

Finding the Fourth Proportional to 78,808,064.94, 118,212,091.20 and 39,940,463.16

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Solution

The fourth proportional to 78,808,064.94, 118,212,091.20 and 39,940,463.16 is: 59,910,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,808,064.94 : 118,212,091.20 = 39,940,463.16 : x
  2. Step 2: Convert to fraction form
    78,808,064.94/118,212,091.20 = 39,940,463.16/x
  3. Step 3: Cross multiply
    78,808,064.94x = 118,212,091.20 × 39,940,463.16
  4. Step 4: Simplify right side
    78,808,064.94x = 4,721,445,673,640,160
  5. Step 5: Solve for x
    x = 4,721,445,673,640,160/78,808,064.94
  6. Step 6: Final answer
    x = 59,910,691.59

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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.