Home / 13,309,216.50-18,366,774.10-7,197,645

Finding the Fourth Proportional to 13,309,216.50, 18,366,774.10 and 7,197,645

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Solution

The fourth proportional to 13,309,216.50, 18,366,774.10 and 7,197,645 is: 9,932,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,216.50 : 18,366,774.10 = 7,197,645 : x
  2. Step 2: Convert to fraction form
    13,309,216.50/18,366,774.10 = 7,197,645/x
  3. Step 3: Cross multiply
    13,309,216.50x = 18,366,774.10 × 7,197,645
  4. Step 4: Simplify right side
    13,309,216.50x = 132,197,519,766,994.52
  5. Step 5: Solve for x
    x = 132,197,519,766,994.52/13,309,216.50
  6. Step 6: Final answer
    x = 9,932,780.02

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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.