Home / 12,890,154.11-17,788,058.06-7,088,936.13

Finding the Fourth Proportional to 12,890,154.11, 17,788,058.06 and 7,088,936.13

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Solution

The fourth proportional to 12,890,154.11, 17,788,058.06 and 7,088,936.13 is: 9,782,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,154.11 : 17,788,058.06 = 7,088,936.13 : x
  2. Step 2: Convert to fraction form
    12,890,154.11/17,788,058.06 = 7,088,936.13/x
  3. Step 3: Cross multiply
    12,890,154.11x = 17,788,058.06 × 7,088,936.13
  4. Step 4: Simplify right side
    12,890,154.11x = 126,098,407,428,627.02
  5. Step 5: Solve for x
    x = 126,098,407,428,627.02/12,890,154.11
  6. Step 6: Final answer
    x = 9,782,536.84

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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.