Home / 21,281,025.60-31,925,685.60-8,499,355.20

Finding the Fourth Proportional to 21,281,025.60, 31,925,685.60 and 8,499,355.20

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Solution

The fourth proportional to 21,281,025.60, 31,925,685.60 and 8,499,355.20 is: 12,750,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,025.60 : 31,925,685.60 = 8,499,355.20 : x
  2. Step 2: Convert to fraction form
    21,281,025.60/31,925,685.60 = 8,499,355.20/x
  3. Step 3: Cross multiply
    21,281,025.60x = 31,925,685.60 × 8,499,355.20
  4. Step 4: Simplify right side
    21,281,025.60x = 271,347,741,917,925.09
  5. Step 5: Solve for x
    x = 271,347,741,917,925.09/21,281,025.60
  6. Step 6: Final answer
    x = 12,750,689.14

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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.