Home / 120,928,240.44-166,828,296.60-76,851,617.40

Finding the Fourth Proportional to 120,928,240.44, 166,828,296.60 and 76,851,617.40

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Solution

The fourth proportional to 120,928,240.44, 166,828,296.60 and 76,851,617.40 is: 106,021,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,928,240.44 : 166,828,296.60 = 76,851,617.40 : x
  2. Step 2: Convert to fraction form
    120,928,240.44/166,828,296.60 = 76,851,617.40/x
  3. Step 3: Cross multiply
    120,928,240.44x = 166,828,296.60 × 76,851,617.40
  4. Step 4: Simplify right side
    120,928,240.44x = 12,821,024,421,796,922
  5. Step 5: Solve for x
    x = 12,821,024,421,796,922/120,928,240.44
  6. Step 6: Final answer
    x = 106,021,756.17

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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.