Home / 78,826,287.90-118,327,905.45-60,954,620.70

Finding the Fourth Proportional to 78,826,287.90, 118,327,905.45 and 60,954,620.70

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Solution

The fourth proportional to 78,826,287.90, 118,327,905.45 and 60,954,620.70 is: 91,500,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826,287.90 : 118,327,905.45 = 60,954,620.70 : x
  2. Step 2: Convert to fraction form
    78,826,287.90/118,327,905.45 = 60,954,620.70/x
  3. Step 3: Cross multiply
    78,826,287.90x = 118,327,905.45 × 60,954,620.70
  4. Step 4: Simplify right side
    78,826,287.90x = 7,212,632,594,930,213
  5. Step 5: Solve for x
    x = 7,212,632,594,930,213/78,826,287.90
  6. Step 6: Final answer
    x = 91,500,345.72

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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.