Home / 111,821,776.13-154,312,208.70-65,419,890.95

Finding the Fourth Proportional to 111,821,776.13, 154,312,208.70 and 65,419,890.95

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Solution

The fourth proportional to 111,821,776.13, 154,312,208.70 and 65,419,890.95 is: 90,278,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,821,776.13 : 154,312,208.70 = 65,419,890.95 : x
  2. Step 2: Convert to fraction form
    111,821,776.13/154,312,208.70 = 65,419,890.95/x
  3. Step 3: Cross multiply
    111,821,776.13x = 154,312,208.70 × 65,419,890.95
  4. Step 4: Simplify right side
    111,821,776.13x = 10,095,087,864,636,080
  5. Step 5: Solve for x
    x = 10,095,087,864,636,080/111,821,776.13
  6. Step 6: Final answer
    x = 90,278,371.66

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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.