Home / 82,377,009.20-123,565,513.80-63,245,133.20

Finding the Fourth Proportional to 82,377,009.20, 123,565,513.80 and 63,245,133.20

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Solution

The fourth proportional to 82,377,009.20, 123,565,513.80 and 63,245,133.20 is: 94,867,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,377,009.20 : 123,565,513.80 = 63,245,133.20 : x
  2. Step 2: Convert to fraction form
    82,377,009.20/123,565,513.80 = 63,245,133.20/x
  3. Step 3: Cross multiply
    82,377,009.20x = 123,565,513.80 × 63,245,133.20
  4. Step 4: Simplify right side
    82,377,009.20x = 7,814,917,379,207,438
  5. Step 5: Solve for x
    x = 7,814,917,379,207,438/82,377,009.20
  6. Step 6: Final answer
    x = 94,867,699.80

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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.