Home / 207,679,591.10-286,686,081.24-129,401,819.66

Finding the Fourth Proportional to 207,679,591.10, 286,686,081.24 and 129,401,819.66

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Solution

The fourth proportional to 207,679,591.10, 286,686,081.24 and 129,401,819.66 is: 178,629,495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,679,591.10 : 286,686,081.24 = 129,401,819.66 : x
  2. Step 2: Convert to fraction form
    207,679,591.10/286,686,081.24 = 129,401,819.66/x
  3. Step 3: Cross multiply
    207,679,591.10x = 286,686,081.24 × 129,401,819.66
  4. Step 4: Simplify right side
    207,679,591.10x = 37,097,700,583,650,592
  5. Step 5: Solve for x
    x = 37,097,700,583,650,592/207,679,591.10
  6. Step 6: Final answer
    x = 178,629,495.50

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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.