Home / 12,967,937-17,895,808.64-7,087,689.60

Finding the Fourth Proportional to 12,967,937, 17,895,808.64 and 7,087,689.60

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Solution

The fourth proportional to 12,967,937, 17,895,808.64 and 7,087,689.60 is: 9,781,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967,937 : 17,895,808.64 = 7,087,689.60 : x
  2. Step 2: Convert to fraction form
    12,967,937/17,895,808.64 = 7,087,689.60/x
  3. Step 3: Cross multiply
    12,967,937x = 17,895,808.64 × 7,087,689.60
  4. Step 4: Simplify right side
    12,967,937x = 126,839,936,781,318.14
  5. Step 5: Solve for x
    x = 126,839,936,781,318.14/12,967,937
  6. Step 6: Final answer
    x = 9,781,042.03

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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.