Home / 105,101,673.20-157,770,474.60-81,272,783.60

Finding the Fourth Proportional to 105,101,673.20, 157,770,474.60 and 81,272,783.60

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Solution

The fourth proportional to 105,101,673.20, 157,770,474.60 and 81,272,783.60 is: 122,000,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,101,673.20 : 157,770,474.60 = 81,272,783.60 : x
  2. Step 2: Convert to fraction form
    105,101,673.20/157,770,474.60 = 81,272,783.60/x
  3. Step 3: Cross multiply
    105,101,673.20x = 157,770,474.60 × 81,272,783.60
  4. Step 4: Simplify right side
    105,101,673.20x = 12,822,445,640,635,096
  5. Step 5: Solve for x
    x = 12,822,445,640,635,096/105,101,673.20
  6. Step 6: Final answer
    x = 122,000,394.95

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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.