Home / 1,361,486,328.78-1,878,901,249.24-758,711,118.72

Finding the Fourth Proportional to 1,361,486,328.78, 1,878,901,249.24 and 758,711,118.72

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Solution

The fourth proportional to 1,361,486,328.78, 1,878,901,249.24 and 758,711,118.72 is: 1,047,049,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,486,328.78 : 1,878,901,249.24 = 758,711,118.72 : x
  2. Step 2: Convert to fraction form
    1,361,486,328.78/1,878,901,249.24 = 758,711,118.72/x
  3. Step 3: Cross multiply
    1,361,486,328.78x = 1,878,901,249.24 × 758,711,118.72
  4. Step 4: Simplify right side
    1,361,486,328.78x = 1,425,543,268,775,286,016
  5. Step 5: Solve for x
    x = 1,425,543,268,775,286,016/1,361,486,328.78
  6. Step 6: Final answer
    x = 1,047,049,271.55

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Double scale
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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.