Home / 15,571,147-21,488,835.70-8,955,737.28

Finding the Fourth Proportional to 15,571,147, 21,488,835.70 and 8,955,737.28

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Solution

The fourth proportional to 15,571,147, 21,488,835.70 and 8,955,737.28 is: 12,359,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571,147 : 21,488,835.70 = 8,955,737.28 : x
  2. Step 2: Convert to fraction form
    15,571,147/21,488,835.70 = 8,955,737.28/x
  3. Step 3: Cross multiply
    15,571,147x = 21,488,835.70 × 8,955,737.28
  4. Step 4: Simplify right side
    15,571,147x = 192,448,366,982,284.88
  5. Step 5: Solve for x
    x = 192,448,366,982,284.88/15,571,147
  6. Step 6: Final answer
    x = 12,359,292.93

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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.