Home / 132,867,070.40-199,300,605.60-81,211,005.20

Finding the Fourth Proportional to 132,867,070.40, 199,300,605.60 and 81,211,005.20

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Solution

The fourth proportional to 132,867,070.40, 199,300,605.60 and 81,211,005.20 is: 121,816,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,867,070.40 : 199,300,605.60 = 81,211,005.20 : x
  2. Step 2: Convert to fraction form
    132,867,070.40/199,300,605.60 = 81,211,005.20/x
  3. Step 3: Cross multiply
    132,867,070.40x = 199,300,605.60 × 81,211,005.20
  4. Step 4: Simplify right side
    132,867,070.40x = 16,185,402,517,744,750
  5. Step 5: Solve for x
    x = 16,185,402,517,744,750/132,867,070.40
  6. Step 6: Final answer
    x = 121,816,507.80

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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.