Home / 522,030,143.92-720,420,540.12-299,054,919.88

Finding the Fourth Proportional to 522,030,143.92, 720,420,540.12 and 299,054,919.88

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Solution

The fourth proportional to 522,030,143.92, 720,420,540.12 and 299,054,919.88 is: 412,706,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,030,143.92 : 720,420,540.12 = 299,054,919.88 : x
  2. Step 2: Convert to fraction form
    522,030,143.92/720,420,540.12 = 299,054,919.88/x
  3. Step 3: Cross multiply
    522,030,143.92x = 720,420,540.12 × 299,054,919.88
  4. Step 4: Simplify right side
    522,030,143.92x = 215,445,306,905,492,928
  5. Step 5: Solve for x
    x = 215,445,306,905,492,928/522,030,143.92
  6. Step 6: Final answer
    x = 412,706,640.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.