Home / 21,289,727.70-31,934,591.55-9,164,999.70

Finding the Fourth Proportional to 21,289,727.70, 31,934,591.55 and 9,164,999.70

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Solution

The fourth proportional to 21,289,727.70, 31,934,591.55 and 9,164,999.70 is: 13,747,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,727.70 : 31,934,591.55 = 9,164,999.70 : x
  2. Step 2: Convert to fraction form
    21,289,727.70/31,934,591.55 = 9,164,999.70/x
  3. Step 3: Cross multiply
    21,289,727.70x = 31,934,591.55 × 9,164,999.70
  4. Step 4: Simplify right side
    21,289,727.70x = 292,680,521,975,372.50
  5. Step 5: Solve for x
    x = 292,680,521,975,372.50/21,289,727.70
  6. Step 6: Final answer
    x = 13,747,499.55

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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.