Home / 81,167,015.76-121,622,890.32-62,767,872.24

Finding the Fourth Proportional to 81,167,015.76, 121,622,890.32 and 62,767,872.24

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Solution

The fourth proportional to 81,167,015.76, 121,622,890.32 and 62,767,872.24 is: 94,053,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,167,015.76 : 121,622,890.32 = 62,767,872.24 : x
  2. Step 2: Convert to fraction form
    81,167,015.76/121,622,890.32 = 62,767,872.24/x
  3. Step 3: Cross multiply
    81,167,015.76x = 121,622,890.32 × 62,767,872.24
  4. Step 4: Simplify right side
    81,167,015.76x = 7,634,010,041,065,293
  5. Step 5: Solve for x
    x = 7,634,010,041,065,293/81,167,015.76
  6. Step 6: Final answer
    x = 94,053,107.28

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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.