Home / 19,181,738.70-28,725,368.85-9,072,549.90

Finding the Fourth Proportional to 19,181,738.70, 28,725,368.85 and 9,072,549.90

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Solution

The fourth proportional to 19,181,738.70, 28,725,368.85 and 9,072,549.90 is: 13,586,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181,738.70 : 28,725,368.85 = 9,072,549.90 : x
  2. Step 2: Convert to fraction form
    19,181,738.70/28,725,368.85 = 9,072,549.90/x
  3. Step 3: Cross multiply
    19,181,738.70x = 28,725,368.85 × 9,072,549.90
  4. Step 4: Simplify right side
    19,181,738.70x = 260,612,342,287,530.62
  5. Step 5: Solve for x
    x = 260,612,342,287,530.62/19,181,738.70
  6. Step 6: Final answer
    x = 13,586,481.72

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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.