Home / 1,215,261,652.20-1,822,942,244.70-353,618,644.20

Finding the Fourth Proportional to 1,215,261,652.20, 1,822,942,244.70 and 353,618,644.20

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Solution

The fourth proportional to 1,215,261,652.20, 1,822,942,244.70 and 353,618,644.20 is: 530,442,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,261,652.20 : 1,822,942,244.70 = 353,618,644.20 : x
  2. Step 2: Convert to fraction form
    1,215,261,652.20/1,822,942,244.70 = 353,618,644.20/x
  3. Step 3: Cross multiply
    1,215,261,652.20x = 1,822,942,244.70 × 353,618,644.20
  4. Step 4: Simplify right side
    1,215,261,652.20x = 644,626,365,025,718,656
  5. Step 5: Solve for x
    x = 644,626,365,025,718,656/1,215,261,652.20
  6. Step 6: Final answer
    x = 530,442,447.40

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1.5x scale

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.