Home / 121,018,505.30-181,504,138.35-40,239,473.30

Finding the Fourth Proportional to 121,018,505.30, 181,504,138.35 and 40,239,473.30

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Solution

The fourth proportional to 121,018,505.30, 181,504,138.35 and 40,239,473.30 is: 60,351,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,018,505.30 : 181,504,138.35 = 40,239,473.30 : x
  2. Step 2: Convert to fraction form
    121,018,505.30/181,504,138.35 = 40,239,473.30/x
  3. Step 3: Cross multiply
    121,018,505.30x = 181,504,138.35 × 40,239,473.30
  4. Step 4: Simplify right side
    121,018,505.30x = 7,303,630,928,974,330
  5. Step 5: Solve for x
    x = 7,303,630,928,974,330/121,018,505.30
  6. Step 6: Final answer
    x = 60,351,356.27

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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.