Home / 28,690,290.20-39,592,252.08-15,637,508.75

Finding the Fourth Proportional to 28,690,290.20, 39,592,252.08 and 15,637,508.75

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Solution

The fourth proportional to 28,690,290.20, 39,592,252.08 and 15,637,508.75 is: 21,579,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690,290.20 : 39,592,252.08 = 15,637,508.75 : x
  2. Step 2: Convert to fraction form
    28,690,290.20/39,592,252.08 = 15,637,508.75/x
  3. Step 3: Cross multiply
    28,690,290.20x = 39,592,252.08 × 15,637,508.75
  4. Step 4: Simplify right side
    28,690,290.20x = 619,124,188,135,244.38
  5. Step 5: Solve for x
    x = 619,124,188,135,244.38/28,690,290.20
  6. Step 6: Final answer
    x = 21,579,572.18

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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.