Home / 12,459,917.90-18,660,385.65-8,449,114.70

Finding the Fourth Proportional to 12,459,917.90, 18,660,385.65 and 8,449,114.70

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Solution

The fourth proportional to 12,459,917.90, 18,660,385.65 and 8,449,114.70 is: 12,653,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,917.90 : 18,660,385.65 = 8,449,114.70 : x
  2. Step 2: Convert to fraction form
    12,459,917.90/18,660,385.65 = 8,449,114.70/x
  3. Step 3: Cross multiply
    12,459,917.90x = 18,660,385.65 × 8,449,114.70
  4. Step 4: Simplify right side
    12,459,917.90x = 157,663,738,703,084.03
  5. Step 5: Solve for x
    x = 157,663,738,703,084.03/12,459,917.90
  6. Step 6: Final answer
    x = 12,653,673.96

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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.