Home / 80,389,867.40-120,584,801.10-49,778,865.80

Finding the Fourth Proportional to 80,389,867.40, 120,584,801.10 and 49,778,865.80

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Solution

The fourth proportional to 80,389,867.40, 120,584,801.10 and 49,778,865.80 is: 74,668,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,389,867.40 : 120,584,801.10 = 49,778,865.80 : x
  2. Step 2: Convert to fraction form
    80,389,867.40/120,584,801.10 = 49,778,865.80/x
  3. Step 3: Cross multiply
    80,389,867.40x = 120,584,801.10 × 49,778,865.80
  4. Step 4: Simplify right side
    80,389,867.40x = 6,002,574,631,476,592
  5. Step 5: Solve for x
    x = 6,002,574,631,476,592/80,389,867.40
  6. Step 6: Final answer
    x = 74,668,298.70

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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.