Home / 80,173,402.95-120,260,504.81-28,358,053.37

Finding the Fourth Proportional to 80,173,402.95, 120,260,504.81 and 28,358,053.37

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Solution

The fourth proportional to 80,173,402.95, 120,260,504.81 and 28,358,053.37 is: 42,537,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173,402.95 : 120,260,504.81 = 28,358,053.37 : x
  2. Step 2: Convert to fraction form
    80,173,402.95/120,260,504.81 = 28,358,053.37/x
  3. Step 3: Cross multiply
    80,173,402.95x = 120,260,504.81 × 28,358,053.37
  4. Step 4: Simplify right side
    80,173,402.95x = 3,410,353,813,863,982.50
  5. Step 5: Solve for x
    x = 3,410,353,813,863,982.50/80,173,402.95
  6. Step 6: Final answer
    x = 42,537,221.68

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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.