Home / 258,193,943-387,290,677.87-80,932,359.19

Finding the Fourth Proportional to 258,193,943, 387,290,677.87 and 80,932,359.19

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Solution

The fourth proportional to 258,193,943, 387,290,677.87 and 80,932,359.19 is: 121,398,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,193,943 : 387,290,677.87 = 80,932,359.19 : x
  2. Step 2: Convert to fraction form
    258,193,943/387,290,677.87 = 80,932,359.19/x
  3. Step 3: Cross multiply
    258,193,943x = 387,290,677.87 × 80,932,359.19
  4. Step 4: Simplify right side
    258,193,943x = 31,344,348,252,313,424
  5. Step 5: Solve for x
    x = 31,344,348,252,313,424/258,193,943
  6. Step 6: Final answer
    x = 121,398,464.61

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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.