Home / 3,979,890,000.40-5,969,835,000.60-2,816,671,939.60

Finding the Fourth Proportional to 3,979,890,000.40, 5,969,835,000.60 and 2,816,671,939.60

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Solution

The fourth proportional to 3,979,890,000.40, 5,969,835,000.60 and 2,816,671,939.60 is: 4,225,007,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,890,000.40 : 5,969,835,000.60 = 2,816,671,939.60 : x
  2. Step 2: Convert to fraction form
    3,979,890,000.40/5,969,835,000.60 = 2,816,671,939.60/x
  3. Step 3: Cross multiply
    3,979,890,000.40x = 5,969,835,000.60 × 2,816,671,939.60
  4. Step 4: Simplify right side
    3,979,890,000.40x = 16,815,066,730,231,969,792
  5. Step 5: Solve for x
    x = 16,815,066,730,231,969,792/3,979,890,000.40
  6. Step 6: Final answer
    x = 4,225,007,909.40

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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.