Home / 129,165,080.40-178,250,751.59-73,401,714.38

Finding the Fourth Proportional to 129,165,080.40, 178,250,751.59 and 73,401,714.38

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Solution

The fourth proportional to 129,165,080.40, 178,250,751.59 and 73,401,714.38 is: 101,296,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,165,080.40 : 178,250,751.59 = 73,401,714.38 : x
  2. Step 2: Convert to fraction form
    129,165,080.40/178,250,751.59 = 73,401,714.38/x
  3. Step 3: Cross multiply
    129,165,080.40x = 178,250,751.59 × 73,401,714.38
  4. Step 4: Simplify right side
    129,165,080.40x = 13,083,910,756,229,510
  5. Step 5: Solve for x
    x = 13,083,910,756,229,510/129,165,080.40
  6. Step 6: Final answer
    x = 101,296,036.95

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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.