Home / 121,127,963.80-181,691,945.70-70,109,627.80

Finding the Fourth Proportional to 121,127,963.80, 181,691,945.70 and 70,109,627.80

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Solution

The fourth proportional to 121,127,963.80, 181,691,945.70 and 70,109,627.80 is: 105,164,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,963.80 : 181,691,945.70 = 70,109,627.80 : x
  2. Step 2: Convert to fraction form
    121,127,963.80/181,691,945.70 = 70,109,627.80/x
  3. Step 3: Cross multiply
    121,127,963.80x = 181,691,945.70 × 70,109,627.80
  4. Step 4: Simplify right side
    121,127,963.80x = 12,738,354,687,284,810
  5. Step 5: Solve for x
    x = 12,738,354,687,284,810/121,127,963.80
  6. Step 6: Final answer
    x = 105,164,441.70

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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.