Home / 21,391,818.41-29,521,377.65-12,099,206.66

Finding the Fourth Proportional to 21,391,818.41, 29,521,377.65 and 12,099,206.66

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Solution

The fourth proportional to 21,391,818.41, 29,521,377.65 and 12,099,206.66 is: 16,697,283.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391,818.41 : 29,521,377.65 = 12,099,206.66 : x
  2. Step 2: Convert to fraction form
    21,391,818.41/29,521,377.65 = 12,099,206.66/x
  3. Step 3: Cross multiply
    21,391,818.41x = 29,521,377.65 × 12,099,206.66
  4. Step 4: Simplify right side
    21,391,818.41x = 357,185,248,957,896.25
  5. Step 5: Solve for x
    x = 357,185,248,957,896.25/21,391,818.41
  6. Step 6: Final answer
    x = 16,697,283.14

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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.