Home / 84,200,423.80-126,300,635.70-73,786,804.60

Finding the Fourth Proportional to 84,200,423.80, 126,300,635.70 and 73,786,804.60

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Solution

The fourth proportional to 84,200,423.80, 126,300,635.70 and 73,786,804.60 is: 110,680,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200,423.80 : 126,300,635.70 = 73,786,804.60 : x
  2. Step 2: Convert to fraction form
    84,200,423.80/126,300,635.70 = 73,786,804.60/x
  3. Step 3: Cross multiply
    84,200,423.80x = 126,300,635.70 × 73,786,804.60
  4. Step 4: Simplify right side
    84,200,423.80x = 9,319,320,327,251,684
  5. Step 5: Solve for x
    x = 9,319,320,327,251,684/84,200,423.80
  6. Step 6: Final answer
    x = 110,680,206.90

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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.