Home / 13,545,665.28-18,693,002.88-7,434,109.44

Finding the Fourth Proportional to 13,545,665.28, 18,693,002.88 and 7,434,109.44

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Solution

The fourth proportional to 13,545,665.28, 18,693,002.88 and 7,434,109.44 is: 10,259,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,665.28 : 18,693,002.88 = 7,434,109.44 : x
  2. Step 2: Convert to fraction form
    13,545,665.28/18,693,002.88 = 7,434,109.44/x
  3. Step 3: Cross multiply
    13,545,665.28x = 18,693,002.88 × 7,434,109.44
  4. Step 4: Simplify right side
    13,545,665.28x = 138,965,829,172,155.19
  5. Step 5: Solve for x
    x = 138,965,829,172,155.19/13,545,665.28
  6. Step 6: Final answer
    x = 10,259,062.68

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1.5x scale

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.