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Finding the Fourth Proportional to 18,676,525.90, 28,014,788.85 and 14,897,389.90

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Solution

The fourth proportional to 18,676,525.90, 28,014,788.85 and 14,897,389.90 is: 22,346,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,525.90 : 28,014,788.85 = 14,897,389.90 : x
  2. Step 2: Convert to fraction form
    18,676,525.90/28,014,788.85 = 14,897,389.90/x
  3. Step 3: Cross multiply
    18,676,525.90x = 28,014,788.85 × 14,897,389.90
  4. Step 4: Simplify right side
    18,676,525.90x = 417,347,232,464,622.62
  5. Step 5: Solve for x
    x = 417,347,232,464,622.62/18,676,525.90
  6. Step 6: Final answer
    x = 22,346,084.85

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Double scale
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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.