Home / 21,278,291.66-29,364,763.34-12,583,916.90

Finding the Fourth Proportional to 21,278,291.66, 29,364,763.34 and 12,583,916.90

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Solution

The fourth proportional to 21,278,291.66, 29,364,763.34 and 12,583,916.90 is: 17,366,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,291.66 : 29,364,763.34 = 12,583,916.90 : x
  2. Step 2: Convert to fraction form
    21,278,291.66/29,364,763.34 = 12,583,916.90/x
  3. Step 3: Cross multiply
    21,278,291.66x = 29,364,763.34 × 12,583,916.90
  4. Step 4: Simplify right side
    21,278,291.66x = 369,523,741,653,480.31
  5. Step 5: Solve for x
    x = 369,523,741,653,480.31/21,278,291.66
  6. Step 6: Final answer
    x = 17,366,231.63

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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.