Home / 120,670,718.40-181,006,077.60-111,222,878.40

Finding the Fourth Proportional to 120,670,718.40, 181,006,077.60 and 111,222,878.40

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Solution

The fourth proportional to 120,670,718.40, 181,006,077.60 and 111,222,878.40 is: 166,834,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670,718.40 : 181,006,077.60 = 111,222,878.40 : x
  2. Step 2: Convert to fraction form
    120,670,718.40/181,006,077.60 = 111,222,878.40/x
  3. Step 3: Cross multiply
    120,670,718.40x = 181,006,077.60 × 111,222,878.40
  4. Step 4: Simplify right side
    120,670,718.40x = 20,132,016,958,565,764
  5. Step 5: Solve for x
    x = 20,132,016,958,565,764/120,670,718.40
  6. Step 6: Final answer
    x = 166,834,317.60

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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.