Home / 210,466,538.56-290,299,709.11-137,226,882.88

Finding the Fourth Proportional to 210,466,538.56, 290,299,709.11 and 137,226,882.88

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Solution

The fourth proportional to 210,466,538.56, 290,299,709.11 and 137,226,882.88 is: 189,279,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,466,538.56 : 290,299,709.11 = 137,226,882.88 : x
  2. Step 2: Convert to fraction form
    210,466,538.56/290,299,709.11 = 137,226,882.88/x
  3. Step 3: Cross multiply
    210,466,538.56x = 290,299,709.11 × 137,226,882.88
  4. Step 4: Simplify right side
    210,466,538.56x = 39,836,924,179,998,408
  5. Step 5: Solve for x
    x = 39,836,924,179,998,408/210,466,538.56
  6. Step 6: Final answer
    x = 189,279,134.13

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1.5x scale

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.