Home / 21,144,986.38-29,125,500.64-14,939,260.65

Finding the Fourth Proportional to 21,144,986.38, 29,125,500.64 and 14,939,260.65

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Solution

The fourth proportional to 21,144,986.38, 29,125,500.64 and 14,939,260.65 is: 20,577,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144,986.38 : 29,125,500.64 = 14,939,260.65 : x
  2. Step 2: Convert to fraction form
    21,144,986.38/29,125,500.64 = 14,939,260.65/x
  3. Step 3: Cross multiply
    21,144,986.38x = 29,125,500.64 × 14,939,260.65
  4. Step 4: Simplify right side
    21,144,986.38x = 435,113,445,813,287
  5. Step 5: Solve for x
    x = 435,113,445,813,287/21,144,986.38
  6. Step 6: Final answer
    x = 20,577,617.69

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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.