Home / 6,475,997.10-9,713,995.65-1,987,689.90

Finding the Fourth Proportional to 6,475,997.10, 9,713,995.65 and 1,987,689.90

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Solution

The fourth proportional to 6,475,997.10, 9,713,995.65 and 1,987,689.90 is: 2,981,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475,997.10 : 9,713,995.65 = 1,987,689.90 : x
  2. Step 2: Convert to fraction form
    6,475,997.10/9,713,995.65 = 1,987,689.90/x
  3. Step 3: Cross multiply
    6,475,997.10x = 9,713,995.65 × 1,987,689.90
  4. Step 4: Simplify right side
    6,475,997.10x = 19,308,411,042,148.93
  5. Step 5: Solve for x
    x = 19,308,411,042,148.93/6,475,997.10
  6. Step 6: Final answer
    x = 2,981,534.85

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Similar ratio
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1.5x scale

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.