Home / 881,170,238.42-1,217,758,920.85-722,149,597.43

Finding the Fourth Proportional to 881,170,238.42, 1,217,758,920.85 and 722,149,597.43

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Solution

The fourth proportional to 881,170,238.42, 1,217,758,920.85 and 722,149,597.43 is: 997,995,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,170,238.42 : 1,217,758,920.85 = 722,149,597.43 : x
  2. Step 2: Convert to fraction form
    881,170,238.42/1,217,758,920.85 = 722,149,597.43/x
  3. Step 3: Cross multiply
    881,170,238.42x = 1,217,758,920.85 × 722,149,597.43
  4. Step 4: Simplify right side
    881,170,238.42x = 879,404,114,457,963,264
  5. Step 5: Solve for x
    x = 879,404,114,457,963,264/881,170,238.42
  6. Step 6: Final answer
    x = 997,995,706.30

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1.5x scale

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.