Home / 140,273,031.04-193,582,761.60-78,393,369.04

Finding the Fourth Proportional to 140,273,031.04, 193,582,761.60 and 78,393,369.04

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Solution

The fourth proportional to 140,273,031.04, 193,582,761.60 and 78,393,369.04 is: 108,186,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,031.04 : 193,582,761.60 = 78,393,369.04 : x
  2. Step 2: Convert to fraction form
    140,273,031.04/193,582,761.60 = 78,393,369.04/x
  3. Step 3: Cross multiply
    140,273,031.04x = 193,582,761.60 × 78,393,369.04
  4. Step 4: Simplify right side
    140,273,031.04x = 15,175,604,869,891,142
  5. Step 5: Solve for x
    x = 15,175,604,869,891,142/140,273,031.04
  6. Step 6: Final answer
    x = 108,186,190.58

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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.