Home / 142,520,267.20-213,780,400.80-126,364,460.80

Finding the Fourth Proportional to 142,520,267.20, 213,780,400.80 and 126,364,460.80

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Solution

The fourth proportional to 142,520,267.20, 213,780,400.80 and 126,364,460.80 is: 189,546,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,520,267.20 : 213,780,400.80 = 126,364,460.80 : x
  2. Step 2: Convert to fraction form
    142,520,267.20/213,780,400.80 = 126,364,460.80/x
  3. Step 3: Cross multiply
    142,520,267.20x = 213,780,400.80 × 126,364,460.80
  4. Step 4: Simplify right side
    142,520,267.20x = 27,014,245,076,699,888
  5. Step 5: Solve for x
    x = 27,014,245,076,699,888/142,520,267.20
  6. Step 6: Final answer
    x = 189,546,691.20

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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.