Home / 21,508,416.60-32,262,624.90-19,156,954.20

Finding the Fourth Proportional to 21,508,416.60, 32,262,624.90 and 19,156,954.20

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Solution

The fourth proportional to 21,508,416.60, 32,262,624.90 and 19,156,954.20 is: 28,735,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508,416.60 : 32,262,624.90 = 19,156,954.20 : x
  2. Step 2: Convert to fraction form
    21,508,416.60/32,262,624.90 = 19,156,954.20/x
  3. Step 3: Cross multiply
    21,508,416.60x = 32,262,624.90 × 19,156,954.20
  4. Step 4: Simplify right side
    21,508,416.60x = 618,053,627,581,079.50
  5. Step 5: Solve for x
    x = 618,053,627,581,079.50/21,508,416.60
  6. Step 6: Final answer
    x = 28,735,431.30

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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.