Home / 80,518,569.32-120,774,480.42-25,929,946.55

Finding the Fourth Proportional to 80,518,569.32, 120,774,480.42 and 25,929,946.55

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Solution

The fourth proportional to 80,518,569.32, 120,774,480.42 and 25,929,946.55 is: 38,893,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518,569.32 : 120,774,480.42 = 25,929,946.55 : x
  2. Step 2: Convert to fraction form
    80,518,569.32/120,774,480.42 = 25,929,946.55/x
  3. Step 3: Cross multiply
    80,518,569.32x = 120,774,480.42 × 25,929,946.55
  4. Step 4: Simplify right side
    80,518,569.32x = 3,131,675,822,293,795
  5. Step 5: Solve for x
    x = 3,131,675,822,293,795/80,518,569.32
  6. Step 6: Final answer
    x = 38,893,833.42

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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.