Home / 82,095,903.20-123,143,854.80-80,820,444.80

Finding the Fourth Proportional to 82,095,903.20, 123,143,854.80 and 80,820,444.80

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Solution

The fourth proportional to 82,095,903.20, 123,143,854.80 and 80,820,444.80 is: 121,230,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,095,903.20 : 123,143,854.80 = 80,820,444.80 : x
  2. Step 2: Convert to fraction form
    82,095,903.20/123,143,854.80 = 80,820,444.80/x
  3. Step 3: Cross multiply
    82,095,903.20x = 123,143,854.80 × 80,820,444.80
  4. Step 4: Simplify right side
    82,095,903.20x = 9,952,541,119,322,614
  5. Step 5: Solve for x
    x = 9,952,541,119,322,614/82,095,903.20
  6. Step 6: Final answer
    x = 121,230,667.20

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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.