Home / 129,094,701.60-193,380,778.80-80,423,162.40

Finding the Fourth Proportional to 129,094,701.60, 193,380,778.80 and 80,423,162.40

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Solution

The fourth proportional to 129,094,701.60, 193,380,778.80 and 80,423,162.40 is: 120,471,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,094,701.60 : 193,380,778.80 = 80,423,162.40 : x
  2. Step 2: Convert to fraction form
    129,094,701.60/193,380,778.80 = 80,423,162.40/x
  3. Step 3: Cross multiply
    129,094,701.60x = 193,380,778.80 × 80,423,162.40
  4. Step 4: Simplify right side
    129,094,701.60x = 15,552,293,778,470,880
  5. Step 5: Solve for x
    x = 15,552,293,778,470,880/129,094,701.60
  6. Step 6: Final answer
    x = 120,471,975.89

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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.