Home / 84,251,012.90-126,376,519.35-70,646,123.30

Finding the Fourth Proportional to 84,251,012.90, 126,376,519.35 and 70,646,123.30

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Solution

The fourth proportional to 84,251,012.90, 126,376,519.35 and 70,646,123.30 is: 105,969,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251,012.90 : 126,376,519.35 = 70,646,123.30 : x
  2. Step 2: Convert to fraction form
    84,251,012.90/126,376,519.35 = 70,646,123.30/x
  3. Step 3: Cross multiply
    84,251,012.90x = 126,376,519.35 × 70,646,123.30
  4. Step 4: Simplify right side
    84,251,012.90x = 8,928,011,168,224,935
  5. Step 5: Solve for x
    x = 8,928,011,168,224,935/84,251,012.90
  6. Step 6: Final answer
    x = 105,969,184.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.