Home / 142,319,898.60-213,479,847.90-84,121,204.20

Finding the Fourth Proportional to 142,319,898.60, 213,479,847.90 and 84,121,204.20

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Solution

The fourth proportional to 142,319,898.60, 213,479,847.90 and 84,121,204.20 is: 126,181,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,319,898.60 : 213,479,847.90 = 84,121,204.20 : x
  2. Step 2: Convert to fraction form
    142,319,898.60/213,479,847.90 = 84,121,204.20/x
  3. Step 3: Cross multiply
    142,319,898.60x = 213,479,847.90 × 84,121,204.20
  4. Step 4: Simplify right side
    142,319,898.60x = 17,958,181,877,780,842
  5. Step 5: Solve for x
    x = 17,958,181,877,780,842/142,319,898.60
  6. Step 6: Final answer
    x = 126,181,806.30

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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.