Home / 79,505,976-110,160,948.80-77,784,107.16

Finding the Fourth Proportional to 79,505,976, 110,160,948.80 and 77,784,107.16

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Solution

The fourth proportional to 79,505,976, 110,160,948.80 and 77,784,107.16 is: 107,775,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,505,976 : 110,160,948.80 = 77,784,107.16 : x
  2. Step 2: Convert to fraction form
    79,505,976/110,160,948.80 = 77,784,107.16/x
  3. Step 3: Cross multiply
    79,505,976x = 110,160,948.80 × 77,784,107.16
  4. Step 4: Simplify right side
    79,505,976x = 8,568,771,046,306,473
  5. Step 5: Solve for x
    x = 8,568,771,046,306,473/79,505,976
  6. Step 6: Final answer
    x = 107,775,182.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.