Home / 3,990,147,884.70-5,985,221,827.05-2,520,819,807.90

Finding the Fourth Proportional to 3,990,147,884.70, 5,985,221,827.05 and 2,520,819,807.90

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Solution

The fourth proportional to 3,990,147,884.70, 5,985,221,827.05 and 2,520,819,807.90 is: 3,781,229,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,147,884.70 : 5,985,221,827.05 = 2,520,819,807.90 : x
  2. Step 2: Convert to fraction form
    3,990,147,884.70/5,985,221,827.05 = 2,520,819,807.90/x
  3. Step 3: Cross multiply
    3,990,147,884.70x = 5,985,221,827.05 × 2,520,819,807.90
  4. Step 4: Simplify right side
    3,990,147,884.70x = 15,087,665,736,303,069,184
  5. Step 5: Solve for x
    x = 15,087,665,736,303,069,184/3,990,147,884.70
  6. Step 6: Final answer
    x = 3,781,229,711.85

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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.