Home / 12,993,146.76-17,930,085.30-7,191,939.72

Finding the Fourth Proportional to 12,993,146.76, 17,930,085.30 and 7,191,939.72

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Solution

The fourth proportional to 12,993,146.76, 17,930,085.30 and 7,191,939.72 is: 9,924,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993,146.76 : 17,930,085.30 = 7,191,939.72 : x
  2. Step 2: Convert to fraction form
    12,993,146.76/17,930,085.30 = 7,191,939.72/x
  3. Step 3: Cross multiply
    12,993,146.76x = 17,930,085.30 × 7,191,939.72
  4. Step 4: Simplify right side
    12,993,146.76x = 128,952,092,652,058.11
  5. Step 5: Solve for x
    x = 128,952,092,652,058.11/12,993,146.76
  6. Step 6: Final answer
    x = 9,924,623.73

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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.