Home / 780,327,966.39-1,170,495,861.08-198,062,385.63

Finding the Fourth Proportional to 780,327,966.39, 1,170,495,861.08 and 198,062,385.63

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Solution

The fourth proportional to 780,327,966.39, 1,170,495,861.08 and 198,062,385.63 is: 297,094,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,327,966.39 : 1,170,495,861.08 = 198,062,385.63 : x
  2. Step 2: Convert to fraction form
    780,327,966.39/1,170,495,861.08 = 198,062,385.63/x
  3. Step 3: Cross multiply
    780,327,966.39x = 1,170,495,861.08 × 198,062,385.63
  4. Step 4: Simplify right side
    780,327,966.39x = 231,831,202,614,555,552
  5. Step 5: Solve for x
    x = 231,831,202,614,555,552/780,327,966.39
  6. Step 6: Final answer
    x = 297,094,571.26

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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.