Home / 18,590,945.76-25,658,548.80-15,488,549.28

Finding the Fourth Proportional to 18,590,945.76, 25,658,548.80 and 15,488,549.28

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Solution

The fourth proportional to 18,590,945.76, 25,658,548.80 and 15,488,549.28 is: 21,376,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,945.76 : 25,658,548.80 = 15,488,549.28 : x
  2. Step 2: Convert to fraction form
    18,590,945.76/25,658,548.80 = 15,488,549.28/x
  3. Step 3: Cross multiply
    18,590,945.76x = 25,658,548.80 × 15,488,549.28
  4. Step 4: Simplify right side
    18,590,945.76x = 397,413,697,542,084.88
  5. Step 5: Solve for x
    x = 397,413,697,542,084.88/18,590,945.76
  6. Step 6: Final answer
    x = 21,376,733.74

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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.