Home / 1,395,543,597.72-1,925,863,078.95-769,034,445.18

Finding the Fourth Proportional to 1,395,543,597.72, 1,925,863,078.95 and 769,034,445.18

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Solution

The fourth proportional to 1,395,543,597.72, 1,925,863,078.95 and 769,034,445.18 is: 1,061,274,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,543,597.72 : 1,925,863,078.95 = 769,034,445.18 : x
  2. Step 2: Convert to fraction form
    1,395,543,597.72/1,925,863,078.95 = 769,034,445.18/x
  3. Step 3: Cross multiply
    1,395,543,597.72x = 1,925,863,078.95 × 769,034,445.18
  4. Step 4: Simplify right side
    1,395,543,597.72x = 1,481,055,044,412,959,744
  5. Step 5: Solve for x
    x = 1,481,055,044,412,959,744/1,395,543,597.72
  6. Step 6: Final answer
    x = 1,061,274,650.85

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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.