Home / 13,590,711.50-18,755,184.62-7,479,140

Finding the Fourth Proportional to 13,590,711.50, 18,755,184.62 and 7,479,140

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Solution

The fourth proportional to 13,590,711.50, 18,755,184.62 and 7,479,140 is: 10,321,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,711.50 : 18,755,184.62 = 7,479,140 : x
  2. Step 2: Convert to fraction form
    13,590,711.50/18,755,184.62 = 7,479,140/x
  3. Step 3: Cross multiply
    13,590,711.50x = 18,755,184.62 × 7,479,140
  4. Step 4: Simplify right side
    13,590,711.50x = 140,272,651,498,826.81
  5. Step 5: Solve for x
    x = 140,272,651,498,826.81/13,590,711.50
  6. Step 6: Final answer
    x = 10,321,214.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.