Home / 20,104,257.60-30,156,386.40-12,451,507.20

Finding the Fourth Proportional to 20,104,257.60, 30,156,386.40 and 12,451,507.20

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Solution

The fourth proportional to 20,104,257.60, 30,156,386.40 and 12,451,507.20 is: 18,677,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104,257.60 : 30,156,386.40 = 12,451,507.20 : x
  2. Step 2: Convert to fraction form
    20,104,257.60/30,156,386.40 = 12,451,507.20/x
  3. Step 3: Cross multiply
    20,104,257.60x = 30,156,386.40 × 12,451,507.20
  4. Step 4: Simplify right side
    20,104,257.60x = 375,492,462,385,582.06
  5. Step 5: Solve for x
    x = 375,492,462,385,582.06/20,104,257.60
  6. Step 6: Final answer
    x = 18,677,260.80

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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.