Home / 132,854,429.80-199,281,644.70-81,570,154.60

Finding the Fourth Proportional to 132,854,429.80, 199,281,644.70 and 81,570,154.60

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Solution

The fourth proportional to 132,854,429.80, 199,281,644.70 and 81,570,154.60 is: 122,355,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,854,429.80 : 199,281,644.70 = 81,570,154.60 : x
  2. Step 2: Convert to fraction form
    132,854,429.80/199,281,644.70 = 81,570,154.60/x
  3. Step 3: Cross multiply
    132,854,429.80x = 199,281,644.70 × 81,570,154.60
  4. Step 4: Simplify right side
    132,854,429.80x = 16,255,434,567,121,268
  5. Step 5: Solve for x
    x = 16,255,434,567,121,268/132,854,429.80
  6. Step 6: Final answer
    x = 122,355,231.90

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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.