Home / 13,543,918.64-18,691,146.64-7,432,565.84

Finding the Fourth Proportional to 13,543,918.64, 18,691,146.64 and 7,432,565.84

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Solution

The fourth proportional to 13,543,918.64, 18,691,146.64 and 7,432,565.84 is: 10,257,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543,918.64 : 18,691,146.64 = 7,432,565.84 : x
  2. Step 2: Convert to fraction form
    13,543,918.64/18,691,146.64 = 7,432,565.84/x
  3. Step 3: Cross multiply
    13,543,918.64x = 18,691,146.64 × 7,432,565.84
  4. Step 4: Simplify right side
    13,543,918.64x = 138,923,178,026,894.78
  5. Step 5: Solve for x
    x = 138,923,178,026,894.78/13,543,918.64
  6. Step 6: Final answer
    x = 10,257,236.60

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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.