Home / 439,872,865.80-659,641,337.10-133,063,009.80

Finding the Fourth Proportional to 439,872,865.80, 659,641,337.10 and 133,063,009.80

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Solution

The fourth proportional to 439,872,865.80, 659,641,337.10 and 133,063,009.80 is: 199,543,705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,872,865.80 : 659,641,337.10 = 133,063,009.80 : x
  2. Step 2: Convert to fraction form
    439,872,865.80/659,641,337.10 = 133,063,009.80/x
  3. Step 3: Cross multiply
    439,872,865.80x = 659,641,337.10 × 133,063,009.80
  4. Step 4: Simplify right side
    439,872,865.80x = 87,773,861,703,022,400
  5. Step 5: Solve for x
    x = 87,773,861,703,022,400/439,872,865.80
  6. Step 6: Final answer
    x = 199,543,705.76

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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.