Home / 12,113,652.60-18,186,225.30-9,720,199.80

Finding the Fourth Proportional to 12,113,652.60, 18,186,225.30 and 9,720,199.80

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Solution

The fourth proportional to 12,113,652.60, 18,186,225.30 and 9,720,199.80 is: 14,592,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113,652.60 : 18,186,225.30 = 9,720,199.80 : x
  2. Step 2: Convert to fraction form
    12,113,652.60/18,186,225.30 = 9,720,199.80/x
  3. Step 3: Cross multiply
    12,113,652.60x = 18,186,225.30 × 9,720,199.80
  4. Step 4: Simplify right side
    12,113,652.60x = 176,773,743,523,814.97
  5. Step 5: Solve for x
    x = 176,773,743,523,814.97/12,113,652.60
  6. Step 6: Final answer
    x = 14,592,934.88

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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.