Home / 121,454,015.40-182,181,023.10-109,738,693.80

Finding the Fourth Proportional to 121,454,015.40, 182,181,023.10 and 109,738,693.80

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Solution

The fourth proportional to 121,454,015.40, 182,181,023.10 and 109,738,693.80 is: 164,608,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454,015.40 : 182,181,023.10 = 109,738,693.80 : x
  2. Step 2: Convert to fraction form
    121,454,015.40/182,181,023.10 = 109,738,693.80/x
  3. Step 3: Cross multiply
    121,454,015.40x = 182,181,023.10 × 109,738,693.80
  4. Step 4: Simplify right side
    121,454,015.40x = 19,992,307,510,141,624
  5. Step 5: Solve for x
    x = 19,992,307,510,141,624/121,454,015.40
  6. Step 6: Final answer
    x = 164,608,040.70

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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.