Home / 123,389,882.88-170,178,751.12-108,473,313.28

Finding the Fourth Proportional to 123,389,882.88, 170,178,751.12 and 108,473,313.28

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Solution

The fourth proportional to 123,389,882.88, 170,178,751.12 and 108,473,313.28 is: 149,605,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389,882.88 : 170,178,751.12 = 108,473,313.28 : x
  2. Step 2: Convert to fraction form
    123,389,882.88/170,178,751.12 = 108,473,313.28/x
  3. Step 3: Cross multiply
    123,389,882.88x = 170,178,751.12 × 108,473,313.28
  4. Step 4: Simplify right side
    123,389,882.88x = 18,459,852,983,838,912
  5. Step 5: Solve for x
    x = 18,459,852,983,838,912/123,389,882.88
  6. Step 6: Final answer
    x = 149,605,887.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.