Home / 18,590,951.76-25,658,557.08-15,488,555.28

Finding the Fourth Proportional to 18,590,951.76, 25,658,557.08 and 15,488,555.28

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Solution

The fourth proportional to 18,590,951.76, 25,658,557.08 and 15,488,555.28 is: 21,376,742.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,951.76 : 25,658,557.08 = 15,488,555.28 : x
  2. Step 2: Convert to fraction form
    18,590,951.76/25,658,557.08 = 15,488,555.28/x
  3. Step 3: Cross multiply
    18,590,951.76x = 25,658,557.08 × 15,488,555.28
  4. Step 4: Simplify right side
    18,590,951.76x = 397,413,979,738,615.31
  5. Step 5: Solve for x
    x = 397,413,979,738,615.31/18,590,951.76
  6. Step 6: Final answer
    x = 21,376,742.02

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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.