Home / 81,398,700.56-112,317,561.80-48,358,100.52

Finding the Fourth Proportional to 81,398,700.56, 112,317,561.80 and 48,358,100.52

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Solution

The fourth proportional to 81,398,700.56, 112,317,561.80 and 48,358,100.52 is: 66,726,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,398,700.56 : 112,317,561.80 = 48,358,100.52 : x
  2. Step 2: Convert to fraction form
    81,398,700.56/112,317,561.80 = 48,358,100.52/x
  3. Step 3: Cross multiply
    81,398,700.56x = 112,317,561.80 × 48,358,100.52
  4. Step 4: Simplify right side
    81,398,700.56x = 5,431,463,943,625,265
  5. Step 5: Solve for x
    x = 5,431,463,943,625,265/81,398,700.56
  6. Step 6: Final answer
    x = 66,726,666.47

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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.