Home / 15,746,686.31-21,730,887.69-9,219,705.10

Finding the Fourth Proportional to 15,746,686.31, 21,730,887.69 and 9,219,705.10

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Solution

The fourth proportional to 15,746,686.31, 21,730,887.69 and 9,219,705.10 is: 12,723,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746,686.31 : 21,730,887.69 = 9,219,705.10 : x
  2. Step 2: Convert to fraction form
    15,746,686.31/21,730,887.69 = 9,219,705.10/x
  3. Step 3: Cross multiply
    15,746,686.31x = 21,730,887.69 × 9,219,705.10
  4. Step 4: Simplify right side
    15,746,686.31x = 200,352,376,063,020.22
  5. Step 5: Solve for x
    x = 200,352,376,063,020.22/15,746,686.31
  6. Step 6: Final answer
    x = 12,723,462.71

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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.