Home / 13,161,058.20-18,162,135.90-7,359,773.40

Finding the Fourth Proportional to 13,161,058.20, 18,162,135.90 and 7,359,773.40

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Solution

The fourth proportional to 13,161,058.20, 18,162,135.90 and 7,359,773.40 is: 10,156,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161,058.20 : 18,162,135.90 = 7,359,773.40 : x
  2. Step 2: Convert to fraction form
    13,161,058.20/18,162,135.90 = 7,359,773.40/x
  3. Step 3: Cross multiply
    13,161,058.20x = 18,162,135.90 × 7,359,773.40
  4. Step 4: Simplify right side
    13,161,058.20x = 133,669,204,684,005.06
  5. Step 5: Solve for x
    x = 133,669,204,684,005.06/13,161,058.20
  6. Step 6: Final answer
    x = 10,156,417.72

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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.