Home / 20,778,045.90-31,167,068.85-16,998,909.90

Finding the Fourth Proportional to 20,778,045.90, 31,167,068.85 and 16,998,909.90

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Solution

The fourth proportional to 20,778,045.90, 31,167,068.85 and 16,998,909.90 is: 25,498,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,045.90 : 31,167,068.85 = 16,998,909.90 : x
  2. Step 2: Convert to fraction form
    20,778,045.90/31,167,068.85 = 16,998,909.90/x
  3. Step 3: Cross multiply
    20,778,045.90x = 31,167,068.85 × 16,998,909.90
  4. Step 4: Simplify right side
    20,778,045.90x = 529,806,195,228,246.62
  5. Step 5: Solve for x
    x = 529,806,195,228,246.62/20,778,045.90
  6. Step 6: Final answer
    x = 25,498,364.85

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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.