Home / 132,888,007.80-199,332,011.70-81,603,732.60

Finding the Fourth Proportional to 132,888,007.80, 199,332,011.70 and 81,603,732.60

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Solution

The fourth proportional to 132,888,007.80, 199,332,011.70 and 81,603,732.60 is: 122,405,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,888,007.80 : 199,332,011.70 = 81,603,732.60 : x
  2. Step 2: Convert to fraction form
    132,888,007.80/199,332,011.70 = 81,603,732.60/x
  3. Step 3: Cross multiply
    132,888,007.80x = 199,332,011.70 × 81,603,732.60
  4. Step 4: Simplify right side
    132,888,007.80x = 16,266,236,181,386,870
  5. Step 5: Solve for x
    x = 16,266,236,181,386,870/132,888,007.80
  6. Step 6: Final answer
    x = 122,405,598.90

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1.5x scale

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.