Home / 86,498,453,147.22-129,617,382,158.23-77,071,979,195.21

Finding the Fourth Proportional to 86,498,453,147.22, 129,617,382,158.23 and 77,071,979,195.21

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Solution

The fourth proportional to 86,498,453,147.22, 129,617,382,158.23 and 77,071,979,195.21 is: 115,491,870,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,498,453,147.22 : 129,617,382,158.23 = 77,071,979,195.21 : x
  2. Step 2: Convert to fraction form
    86,498,453,147.22/129,617,382,158.23 = 77,071,979,195.21/x
  3. Step 3: Cross multiply
    86,498,453,147.22x = 129,617,382,158.23 × 77,071,979,195.21
  4. Step 4: Simplify right side
    86,498,453,147.22x = 9,989,868,181,036,038,356,992
  5. Step 5: Solve for x
    x = 9,989,868,181,036,038,356,992/86,498,453,147.22
  6. Step 6: Final answer
    x = 115,491,870,866.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.