Home / 80,518,568.26-120,774,478.83-25,929,945.49

Finding the Fourth Proportional to 80,518,568.26, 120,774,478.83 and 25,929,945.49

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Solution

The fourth proportional to 80,518,568.26, 120,774,478.83 and 25,929,945.49 is: 38,893,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518,568.26 : 120,774,478.83 = 25,929,945.49 : x
  2. Step 2: Convert to fraction form
    80,518,568.26/120,774,478.83 = 25,929,945.49/x
  3. Step 3: Cross multiply
    80,518,568.26x = 120,774,478.83 × 25,929,945.49
  4. Step 4: Simplify right side
    80,518,568.26x = 3,131,675,652,645,058.50
  5. Step 5: Solve for x
    x = 3,131,675,652,645,058.50/80,518,568.26
  6. Step 6: Final answer
    x = 38,893,831.82

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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.