Home / 86,498,453,148.22-129,617,382,159.73-77,071,979,196.21

Finding the Fourth Proportional to 86,498,453,148.22, 129,617,382,159.73 and 77,071,979,196.21

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Solution

The fourth proportional to 86,498,453,148.22, 129,617,382,159.73 and 77,071,979,196.21 is: 115,491,870,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,498,453,148.22 : 129,617,382,159.73 = 77,071,979,196.21 : x
  2. Step 2: Convert to fraction form
    86,498,453,148.22/129,617,382,159.73 = 77,071,979,196.21/x
  3. Step 3: Cross multiply
    86,498,453,148.22x = 129,617,382,159.73 × 77,071,979,196.21
  4. Step 4: Simplify right side
    86,498,453,148.22x = 9,989,868,181,281,912,651,776
  5. Step 5: Solve for x
    x = 9,989,868,181,281,912,651,776/86,498,453,148.22
  6. Step 6: Final answer
    x = 115,491,870,868.07

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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.