Home / 439,872,869.80-659,641,343.10-133,063,013.80

Finding the Fourth Proportional to 439,872,869.80, 659,641,343.10 and 133,063,013.80

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Solution

The fourth proportional to 439,872,869.80, 659,641,343.10 and 133,063,013.80 is: 199,543,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,872,869.80 : 659,641,343.10 = 133,063,013.80 : x
  2. Step 2: Convert to fraction form
    439,872,869.80/659,641,343.10 = 133,063,013.80/x
  3. Step 3: Cross multiply
    439,872,869.80x = 659,641,343.10 × 133,063,013.80
  4. Step 4: Simplify right side
    439,872,869.80x = 87,773,865,139,965,840
  5. Step 5: Solve for x
    x = 87,773,865,139,965,840/439,872,869.80
  6. Step 6: Final answer
    x = 199,543,711.75

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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.