Home / 80,071,386,839.36-110,491,210,268.96-47,512,989,372.72

Finding the Fourth Proportional to 80,071,386,839.36, 110,491,210,268.96 and 47,512,989,372.72

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Solution

The fourth proportional to 80,071,386,839.36, 110,491,210,268.96 and 47,512,989,372.72 is: 65,563,591,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,071,386,839.36 : 110,491,210,268.96 = 47,512,989,372.72 : x
  2. Step 2: Convert to fraction form
    80,071,386,839.36/110,491,210,268.96 = 47,512,989,372.72/x
  3. Step 3: Cross multiply
    80,071,386,839.36x = 110,491,210,268.96 × 47,512,989,372.72
  4. Step 4: Simplify right side
    80,071,386,839.36x = 5,249,767,699,288,067,932,160
  5. Step 5: Solve for x
    x = 5,249,767,699,288,067,932,160/80,071,386,839.36
  6. Step 6: Final answer
    x = 65,563,591,521.40

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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.