Home / 129,031,856.80-193,547,785.20-52,391,600.80

Finding the Fourth Proportional to 129,031,856.80, 193,547,785.20 and 52,391,600.80

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Solution

The fourth proportional to 129,031,856.80, 193,547,785.20 and 52,391,600.80 is: 78,587,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,031,856.80 : 193,547,785.20 = 52,391,600.80 : x
  2. Step 2: Convert to fraction form
    129,031,856.80/193,547,785.20 = 52,391,600.80/x
  3. Step 3: Cross multiply
    129,031,856.80x = 193,547,785.20 × 52,391,600.80
  4. Step 4: Simplify right side
    129,031,856.80x = 10,140,278,297,922,546
  5. Step 5: Solve for x
    x = 10,140,278,297,922,546/129,031,856.80
  6. Step 6: Final answer
    x = 78,587,401.20

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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.