Home / 121,542,818.85-167,745,056.63-69,319,883.25

Finding the Fourth Proportional to 121,542,818.85, 167,745,056.63 and 69,319,883.25

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Solution

The fourth proportional to 121,542,818.85, 167,745,056.63 and 69,319,883.25 is: 95,670,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,542,818.85 : 167,745,056.63 = 69,319,883.25 : x
  2. Step 2: Convert to fraction form
    121,542,818.85/167,745,056.63 = 69,319,883.25/x
  3. Step 3: Cross multiply
    121,542,818.85x = 167,745,056.63 × 69,319,883.25
  4. Step 4: Simplify right side
    121,542,818.85x = 11,628,067,741,009,640
  5. Step 5: Solve for x
    x = 11,628,067,741,009,640/121,542,818.85
  6. Step 6: Final answer
    x = 95,670,545.17

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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.