Home / 18,721,810.10-28,082,715.15-15,887,458.10

Finding the Fourth Proportional to 18,721,810.10, 28,082,715.15 and 15,887,458.10

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Solution

The fourth proportional to 18,721,810.10, 28,082,715.15 and 15,887,458.10 is: 23,831,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,810.10 : 28,082,715.15 = 15,887,458.10 : x
  2. Step 2: Convert to fraction form
    18,721,810.10/28,082,715.15 = 15,887,458.10/x
  3. Step 3: Cross multiply
    18,721,810.10x = 28,082,715.15 × 15,887,458.10
  4. Step 4: Simplify right side
    18,721,810.10x = 446,162,960,279,860.19
  5. Step 5: Solve for x
    x = 446,162,960,279,860.19/18,721,810.10
  6. Step 6: Final answer
    x = 23,831,187.15

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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.