Home / 260,831,315.20-391,246,972.80-158,794,643.20

Finding the Fourth Proportional to 260,831,315.20, 391,246,972.80 and 158,794,643.20

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Solution

The fourth proportional to 260,831,315.20, 391,246,972.80 and 158,794,643.20 is: 238,191,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,831,315.20 : 391,246,972.80 = 158,794,643.20 : x
  2. Step 2: Convert to fraction form
    260,831,315.20/391,246,972.80 = 158,794,643.20/x
  3. Step 3: Cross multiply
    260,831,315.20x = 391,246,972.80 × 158,794,643.20
  4. Step 4: Simplify right side
    260,831,315.20x = 62,127,923,448,856,104
  5. Step 5: Solve for x
    x = 62,127,923,448,856,104/260,831,315.20
  6. Step 6: Final answer
    x = 238,191,964.80

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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.