Home / 129,482,640.96-178,683,959.04-70,744,044.48

Finding the Fourth Proportional to 129,482,640.96, 178,683,959.04 and 70,744,044.48

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Solution

The fourth proportional to 129,482,640.96, 178,683,959.04 and 70,744,044.48 is: 97,625,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,640.96 : 178,683,959.04 = 70,744,044.48 : x
  2. Step 2: Convert to fraction form
    129,482,640.96/178,683,959.04 = 70,744,044.48/x
  3. Step 3: Cross multiply
    129,482,640.96x = 178,683,959.04 × 70,744,044.48
  4. Step 4: Simplify right side
    129,482,640.96x = 12,640,825,946,188,258
  5. Step 5: Solve for x
    x = 12,640,825,946,188,258/129,482,640.96
  6. Step 6: Final answer
    x = 97,625,641.96

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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.