Home / 111,901,707.20-167,852,560.80-66,440,100.80

Finding the Fourth Proportional to 111,901,707.20, 167,852,560.80 and 66,440,100.80

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Solution

The fourth proportional to 111,901,707.20, 167,852,560.80 and 66,440,100.80 is: 99,660,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,901,707.20 : 167,852,560.80 = 66,440,100.80 : x
  2. Step 2: Convert to fraction form
    111,901,707.20/167,852,560.80 = 66,440,100.80/x
  3. Step 3: Cross multiply
    111,901,707.20x = 167,852,560.80 × 66,440,100.80
  4. Step 4: Simplify right side
    111,901,707.20x = 11,152,141,059,090,128
  5. Step 5: Solve for x
    x = 11,152,141,059,090,128/111,901,707.20
  6. Step 6: Final answer
    x = 99,660,151.20

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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.