Home / 20,778,046.90-31,167,070.35-16,998,910.90

Finding the Fourth Proportional to 20,778,046.90, 31,167,070.35 and 16,998,910.90

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Solution

The fourth proportional to 20,778,046.90, 31,167,070.35 and 16,998,910.90 is: 25,498,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,046.90 : 31,167,070.35 = 16,998,910.90 : x
  2. Step 2: Convert to fraction form
    20,778,046.90/31,167,070.35 = 16,998,910.90/x
  3. Step 3: Cross multiply
    20,778,046.90x = 31,167,070.35 × 16,998,910.90
  4. Step 4: Simplify right side
    20,778,046.90x = 529,806,251,893,681.81
  5. Step 5: Solve for x
    x = 529,806,251,893,681.81/20,778,046.90
  6. Step 6: Final answer
    x = 25,498,366.35

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Similar ratio
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1.5x scale

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.