Home / 2,628,331,311.40-3,942,496,967.10-689,830,498.60

Finding the Fourth Proportional to 2,628,331,311.40, 3,942,496,967.10 and 689,830,498.60

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Solution

The fourth proportional to 2,628,331,311.40, 3,942,496,967.10 and 689,830,498.60 is: 1,034,745,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,331,311.40 : 3,942,496,967.10 = 689,830,498.60 : x
  2. Step 2: Convert to fraction form
    2,628,331,311.40/3,942,496,967.10 = 689,830,498.60/x
  3. Step 3: Cross multiply
    2,628,331,311.40x = 3,942,496,967.10 × 689,830,498.60
  4. Step 4: Simplify right side
    2,628,331,311.40x = 2,719,654,648,543,580,672
  5. Step 5: Solve for x
    x = 2,719,654,648,543,580,672/2,628,331,311.40
  6. Step 6: Final answer
    x = 1,034,745,747.90

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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.