Home / 28,555,638-42,817,360.20-9,381,246.72

Finding the Fourth Proportional to 28,555,638, 42,817,360.20 and 9,381,246.72

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Solution

The fourth proportional to 28,555,638, 42,817,360.20 and 9,381,246.72 is: 14,066,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555,638 : 42,817,360.20 = 9,381,246.72 : x
  2. Step 2: Convert to fraction form
    28,555,638/42,817,360.20 = 9,381,246.72/x
  3. Step 3: Cross multiply
    28,555,638x = 42,817,360.20 × 9,381,246.72
  4. Step 4: Simplify right side
    28,555,638x = 401,680,219,935,308.62
  5. Step 5: Solve for x
    x = 401,680,219,935,308.62/28,555,638
  6. Step 6: Final answer
    x = 14,066,581.88

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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.