Home / 21,696,580-29,941,280.40-12,040,341.92

Finding the Fourth Proportional to 21,696,580, 29,941,280.40 and 12,040,341.92

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Solution

The fourth proportional to 21,696,580, 29,941,280.40 and 12,040,341.92 is: 16,615,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696,580 : 29,941,280.40 = 12,040,341.92 : x
  2. Step 2: Convert to fraction form
    21,696,580/29,941,280.40 = 12,040,341.92/x
  3. Step 3: Cross multiply
    21,696,580x = 29,941,280.40 × 12,040,341.92
  4. Step 4: Simplify right side
    21,696,580x = 360,503,253,538,594.38
  5. Step 5: Solve for x
    x = 360,503,253,538,594.38/21,696,580
  6. Step 6: Final answer
    x = 16,615,671.85

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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.