Home / 28,690,117.32-43,034,961.45-8,219,854.22

Finding the Fourth Proportional to 28,690,117.32, 43,034,961.45 and 8,219,854.22

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Solution

The fourth proportional to 28,690,117.32, 43,034,961.45 and 8,219,854.22 is: 12,329,719.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690,117.32 : 43,034,961.45 = 8,219,854.22 : x
  2. Step 2: Convert to fraction form
    28,690,117.32/43,034,961.45 = 8,219,854.22/x
  3. Step 3: Cross multiply
    28,690,117.32x = 43,034,961.45 × 8,219,854.22
  4. Step 4: Simplify right side
    28,690,117.32x = 353,741,109,482,319.81
  5. Step 5: Solve for x
    x = 353,741,109,482,319.81/28,690,117.32
  6. Step 6: Final answer
    x = 12,329,719.87

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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.