Home / 78,887,912.40-118,275,881.40-35,777,768.40

Finding the Fourth Proportional to 78,887,912.40, 118,275,881.40 and 35,777,768.40

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Solution

The fourth proportional to 78,887,912.40, 118,275,881.40 and 35,777,768.40 is: 53,641,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887,912.40 : 118,275,881.40 = 35,777,768.40 : x
  2. Step 2: Convert to fraction form
    78,887,912.40/118,275,881.40 = 35,777,768.40/x
  3. Step 3: Cross multiply
    78,887,912.40x = 118,275,881.40 × 35,777,768.40
  4. Step 4: Simplify right side
    78,887,912.40x = 4,231,647,092,035,068
  5. Step 5: Solve for x
    x = 4,231,647,092,035,068/78,887,912.40
  6. Step 6: Final answer
    x = 53,641,260.91

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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.