Home / 489,923,246.40-734,869,123.20-162,413,872.80

Finding the Fourth Proportional to 489,923,246.40, 734,869,123.20 and 162,413,872.80

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Solution

The fourth proportional to 489,923,246.40, 734,869,123.20 and 162,413,872.80 is: 243,615,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,923,246.40 : 734,869,123.20 = 162,413,872.80 : x
  2. Step 2: Convert to fraction form
    489,923,246.40/734,869,123.20 = 162,413,872.80/x
  3. Step 3: Cross multiply
    489,923,246.40x = 734,869,123.20 × 162,413,872.80
  4. Step 4: Simplify right side
    489,923,246.40x = 119,352,940,300,052,352
  5. Step 5: Solve for x
    x = 119,352,940,300,052,352/489,923,246.40
  6. Step 6: Final answer
    x = 243,615,589.13

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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.