Home / 12,787,997.88-17,646,515.91-6,985,547.90

Finding the Fourth Proportional to 12,787,997.88, 17,646,515.91 and 6,985,547.90

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Solution

The fourth proportional to 12,787,997.88, 17,646,515.91 and 6,985,547.90 is: 9,639,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,997.88 : 17,646,515.91 = 6,985,547.90 : x
  2. Step 2: Convert to fraction form
    12,787,997.88/17,646,515.91 = 6,985,547.90/x
  3. Step 3: Cross multiply
    12,787,997.88x = 17,646,515.91 × 6,985,547.90
  4. Step 4: Simplify right side
    12,787,997.88x = 123,270,582,157,417.09
  5. Step 5: Solve for x
    x = 123,270,582,157,417.09/12,787,997.88
  6. Step 6: Final answer
    x = 9,639,552.91

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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.