Home / 15,428,265.14-21,291,199.89-8,903,248.58

Finding the Fourth Proportional to 15,428,265.14, 21,291,199.89 and 8,903,248.58

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Solution

The fourth proportional to 15,428,265.14, 21,291,199.89 and 8,903,248.58 is: 12,286,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428,265.14 : 21,291,199.89 = 8,903,248.58 : x
  2. Step 2: Convert to fraction form
    15,428,265.14/21,291,199.89 = 8,903,248.58/x
  3. Step 3: Cross multiply
    15,428,265.14x = 21,291,199.89 × 8,903,248.58
  4. Step 4: Simplify right side
    15,428,265.14x = 189,560,845,187,138.66
  5. Step 5: Solve for x
    x = 189,560,845,187,138.66/15,428,265.14
  6. Step 6: Final answer
    x = 12,286,594.99

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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.