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Finding the Fourth Proportional to 13,693,223.02, 18,897,238.02 and 7,581,651.52

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Solution

The fourth proportional to 13,693,223.02, 18,897,238.02 and 7,581,651.52 is: 10,463,005.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693,223.02 : 18,897,238.02 = 7,581,651.52 : x
  2. Step 2: Convert to fraction form
    13,693,223.02/18,897,238.02 = 7,581,651.52/x
  3. Step 3: Cross multiply
    13,693,223.02x = 18,897,238.02 × 7,581,651.52
  4. Step 4: Simplify right side
    13,693,223.02x = 143,272,273,358,134.78
  5. Step 5: Solve for x
    x = 143,272,273,358,134.78/13,693,223.02
  6. Step 6: Final answer
    x = 10,463,005.91

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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.