Home / 80,881,796.40-121,322,694.60-53,672,017.20

Finding the Fourth Proportional to 80,881,796.40, 121,322,694.60 and 53,672,017.20

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Solution

The fourth proportional to 80,881,796.40, 121,322,694.60 and 53,672,017.20 is: 80,508,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881,796.40 : 121,322,694.60 = 53,672,017.20 : x
  2. Step 2: Convert to fraction form
    80,881,796.40/121,322,694.60 = 53,672,017.20/x
  3. Step 3: Cross multiply
    80,881,796.40x = 121,322,694.60 × 53,672,017.20
  4. Step 4: Simplify right side
    80,881,796.40x = 6,511,633,751,321,547
  5. Step 5: Solve for x
    x = 6,511,633,751,321,547/80,881,796.40
  6. Step 6: Final answer
    x = 80,508,025.80

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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.