Home / 28,481,881.52-39,304,960.98-15,429,194.38

Finding the Fourth Proportional to 28,481,881.52, 39,304,960.98 and 15,429,194.38

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Solution

The fourth proportional to 28,481,881.52, 39,304,960.98 and 15,429,194.38 is: 21,292,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481,881.52 : 39,304,960.98 = 15,429,194.38 : x
  2. Step 2: Convert to fraction form
    28,481,881.52/39,304,960.98 = 15,429,194.38/x
  3. Step 3: Cross multiply
    28,481,881.52x = 39,304,960.98 × 15,429,194.38
  4. Step 4: Simplify right side
    28,481,881.52x = 606,443,883,136,811.62
  5. Step 5: Solve for x
    x = 606,443,883,136,811.62/28,481,881.52
  6. Step 6: Final answer
    x = 21,292,269.01

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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.