Home / 142,684,656-196,898,235.84-80,805,437.52

Finding the Fourth Proportional to 142,684,656, 196,898,235.84 and 80,805,437.52

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Solution

The fourth proportional to 142,684,656, 196,898,235.84 and 80,805,437.52 is: 111,507,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,656 : 196,898,235.84 = 80,805,437.52 : x
  2. Step 2: Convert to fraction form
    142,684,656/196,898,235.84 = 80,805,437.52/x
  3. Step 3: Cross multiply
    142,684,656x = 196,898,235.84 × 80,805,437.52
  4. Step 4: Simplify right side
    142,684,656x = 15,910,448,093,967,344
  5. Step 5: Solve for x
    x = 15,910,448,093,967,344/142,684,656
  6. Step 6: Final answer
    x = 111,507,772.03

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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.