Home / 129,328,297.20-193,992,445.80-83,411,794.80

Finding the Fourth Proportional to 129,328,297.20, 193,992,445.80 and 83,411,794.80

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Solution

The fourth proportional to 129,328,297.20, 193,992,445.80 and 83,411,794.80 is: 125,117,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,328,297.20 : 193,992,445.80 = 83,411,794.80 : x
  2. Step 2: Convert to fraction form
    129,328,297.20/193,992,445.80 = 83,411,794.80/x
  3. Step 3: Cross multiply
    129,328,297.20x = 193,992,445.80 × 83,411,794.80
  4. Step 4: Simplify right side
    129,328,297.20x = 16,181,258,081,819,722
  5. Step 5: Solve for x
    x = 16,181,258,081,819,722/129,328,297.20
  6. Step 6: Final answer
    x = 125,117,692.20

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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.