Home / 80,569,860.81-120,768,734.66-45,951,730.89

Finding the Fourth Proportional to 80,569,860.81, 120,768,734.66 and 45,951,730.89

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Solution

The fourth proportional to 80,569,860.81, 120,768,734.66 and 45,951,730.89 is: 68,878,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569,860.81 : 120,768,734.66 = 45,951,730.89 : x
  2. Step 2: Convert to fraction form
    80,569,860.81/120,768,734.66 = 45,951,730.89/x
  3. Step 3: Cross multiply
    80,569,860.81x = 120,768,734.66 × 45,951,730.89
  4. Step 4: Simplify right side
    80,569,860.81x = 5,549,532,394,792,377
  5. Step 5: Solve for x
    x = 5,549,532,394,792,377/80,569,860.81
  6. Step 6: Final answer
    x = 68,878,515.35

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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.