Home / 18,739,969.30-28,109,953.95-5,961,765.70

Finding the Fourth Proportional to 18,739,969.30, 28,109,953.95 and 5,961,765.70

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Solution

The fourth proportional to 18,739,969.30, 28,109,953.95 and 5,961,765.70 is: 8,942,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739,969.30 : 28,109,953.95 = 5,961,765.70 : x
  2. Step 2: Convert to fraction form
    18,739,969.30/28,109,953.95 = 5,961,765.70/x
  3. Step 3: Cross multiply
    18,739,969.30x = 28,109,953.95 × 5,961,765.70
  4. Step 4: Simplify right side
    18,739,969.30x = 167,584,959,287,689.53
  5. Step 5: Solve for x
    x = 167,584,959,287,689.53/18,739,969.30
  6. Step 6: Final answer
    x = 8,942,648.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.