Home / 193,986,634.32-290,728,006.92-78,837,176.88

Finding the Fourth Proportional to 193,986,634.32, 290,728,006.92 and 78,837,176.88

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Solution

The fourth proportional to 193,986,634.32, 290,728,006.92 and 78,837,176.88 is: 118,153,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,986,634.32 : 290,728,006.92 = 78,837,176.88 : x
  2. Step 2: Convert to fraction form
    193,986,634.32/290,728,006.92 = 78,837,176.88/x
  3. Step 3: Cross multiply
    193,986,634.32x = 290,728,006.92 × 78,837,176.88
  4. Step 4: Simplify right side
    193,986,634.32x = 22,920,175,305,521,904
  5. Step 5: Solve for x
    x = 22,920,175,305,521,904/193,986,634.32
  6. Step 6: Final answer
    x = 118,153,373.74

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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.