Home / 21,332,290.86-29,433,441.73-12,959,493.18

Finding the Fourth Proportional to 21,332,290.86, 29,433,441.73 and 12,959,493.18

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Solution

The fourth proportional to 21,332,290.86, 29,433,441.73 and 12,959,493.18 is: 17,880,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332,290.86 : 29,433,441.73 = 12,959,493.18 : x
  2. Step 2: Convert to fraction form
    21,332,290.86/29,433,441.73 = 12,959,493.18/x
  3. Step 3: Cross multiply
    21,332,290.86x = 29,433,441.73 × 12,959,493.18
  4. Step 4: Simplify right side
    21,332,290.86x = 381,442,487,363,862.38
  5. Step 5: Solve for x
    x = 381,442,487,363,862.38/21,332,290.86
  6. Step 6: Final answer
    x = 17,880,990.37

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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.