Home / 207,361,385.60-311,042,078.40-130,434,972.80

Finding the Fourth Proportional to 207,361,385.60, 311,042,078.40 and 130,434,972.80

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Solution

The fourth proportional to 207,361,385.60, 311,042,078.40 and 130,434,972.80 is: 195,652,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,361,385.60 : 311,042,078.40 = 130,434,972.80 : x
  2. Step 2: Convert to fraction form
    207,361,385.60/311,042,078.40 = 130,434,972.80/x
  3. Step 3: Cross multiply
    207,361,385.60x = 311,042,078.40 × 130,434,972.80
  4. Step 4: Simplify right side
    207,361,385.60x = 40,570,765,035,759,464
  5. Step 5: Solve for x
    x = 40,570,765,035,759,464/207,361,385.60
  6. Step 6: Final answer
    x = 195,652,459.20

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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.