Home / 111,281,619.80-166,844,669.70-65,820,013.40

Finding the Fourth Proportional to 111,281,619.80, 166,844,669.70 and 65,820,013.40

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Solution

The fourth proportional to 111,281,619.80, 166,844,669.70 and 65,820,013.40 is: 98,684,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,281,619.80 : 166,844,669.70 = 65,820,013.40 : x
  2. Step 2: Convert to fraction form
    111,281,619.80/166,844,669.70 = 65,820,013.40/x
  3. Step 3: Cross multiply
    111,281,619.80x = 166,844,669.70 × 65,820,013.40
  4. Step 4: Simplify right side
    111,281,619.80x = 10,981,718,395,372,572
  5. Step 5: Solve for x
    x = 10,981,718,395,372,572/111,281,619.80
  6. Step 6: Final answer
    x = 98,684,027.20

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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.