Home / 156,572,047.20-234,858,070.80-142,463,272.80

Finding the Fourth Proportional to 156,572,047.20, 234,858,070.80 and 142,463,272.80

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Solution

The fourth proportional to 156,572,047.20, 234,858,070.80 and 142,463,272.80 is: 213,694,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,572,047.20 : 234,858,070.80 = 142,463,272.80 : x
  2. Step 2: Convert to fraction form
    156,572,047.20/234,858,070.80 = 142,463,272.80/x
  3. Step 3: Cross multiply
    156,572,047.20x = 234,858,070.80 × 142,463,272.80
  4. Step 4: Simplify right side
    156,572,047.20x = 33,458,649,409,662,120
  5. Step 5: Solve for x
    x = 33,458,649,409,662,120/156,572,047.20
  6. Step 6: Final answer
    x = 213,694,909.20

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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.