Home / 21,650,267.76-29,877,366.92-12,948,438.96

Finding the Fourth Proportional to 21,650,267.76, 29,877,366.92 and 12,948,438.96

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Solution

The fourth proportional to 21,650,267.76, 29,877,366.92 and 12,948,438.96 is: 17,868,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650,267.76 : 29,877,366.92 = 12,948,438.96 : x
  2. Step 2: Convert to fraction form
    21,650,267.76/29,877,366.92 = 12,948,438.96/x
  3. Step 3: Cross multiply
    21,650,267.76x = 29,877,366.92 × 12,948,438.96
  4. Step 4: Simplify right side
    21,650,267.76x = 386,865,261,849,143.25
  5. Step 5: Solve for x
    x = 386,865,261,849,143.25/21,650,267.76
  6. Step 6: Final answer
    x = 17,868,844.22

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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.