Home / 1,140,722,439.62-1,708,136,782.44-787,287,311.84

Finding the Fourth Proportional to 1,140,722,439.62, 1,708,136,782.44 and 787,287,311.84

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Solution

The fourth proportional to 1,140,722,439.62, 1,708,136,782.44 and 787,287,311.84 is: 1,178,897,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,722,439.62 : 1,708,136,782.44 = 787,287,311.84 : x
  2. Step 2: Convert to fraction form
    1,140,722,439.62/1,708,136,782.44 = 787,287,311.84/x
  3. Step 3: Cross multiply
    1,140,722,439.62x = 1,708,136,782.44 × 787,287,311.84
  4. Step 4: Simplify right side
    1,140,722,439.62x = 1,344,794,415,693,673,984
  5. Step 5: Solve for x
    x = 1,344,794,415,693,673,984/1,140,722,439.62
  6. Step 6: Final answer
    x = 1,178,897,134.83

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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.