Home / 21,306,065.10-31,959,097.65-13,653,314.70

Finding the Fourth Proportional to 21,306,065.10, 31,959,097.65 and 13,653,314.70

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Solution

The fourth proportional to 21,306,065.10, 31,959,097.65 and 13,653,314.70 is: 20,479,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306,065.10 : 31,959,097.65 = 13,653,314.70 : x
  2. Step 2: Convert to fraction form
    21,306,065.10/31,959,097.65 = 13,653,314.70/x
  3. Step 3: Cross multiply
    21,306,065.10x = 31,959,097.65 × 13,653,314.70
  4. Step 4: Simplify right side
    21,306,065.10x = 436,347,617,743,480.44
  5. Step 5: Solve for x
    x = 436,347,617,743,480.44/21,306,065.10
  6. Step 6: Final answer
    x = 20,479,972.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.