Home / 130,571,200.80-195,856,801.20-78,615,079.20

Finding the Fourth Proportional to 130,571,200.80, 195,856,801.20 and 78,615,079.20

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Solution

The fourth proportional to 130,571,200.80, 195,856,801.20 and 78,615,079.20 is: 117,922,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,571,200.80 : 195,856,801.20 = 78,615,079.20 : x
  2. Step 2: Convert to fraction form
    130,571,200.80/195,856,801.20 = 78,615,079.20/x
  3. Step 3: Cross multiply
    130,571,200.80x = 195,856,801.20 × 78,615,079.20
  4. Step 4: Simplify right side
    130,571,200.80x = 15,397,297,938,196,654
  5. Step 5: Solve for x
    x = 15,397,297,938,196,654/130,571,200.80
  6. Step 6: Final answer
    x = 117,922,618.80

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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.