Home / 186,319,262.16-257,121,635.85-108,049,287.78

Finding the Fourth Proportional to 186,319,262.16, 257,121,635.85 and 108,049,287.78

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Solution

The fourth proportional to 186,319,262.16, 257,121,635.85 and 108,049,287.78 is: 149,108,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,319,262.16 : 257,121,635.85 = 108,049,287.78 : x
  2. Step 2: Convert to fraction form
    186,319,262.16/257,121,635.85 = 108,049,287.78/x
  3. Step 3: Cross multiply
    186,319,262.16x = 257,121,635.85 × 108,049,287.78
  4. Step 4: Simplify right side
    186,319,262.16x = 27,781,809,626,421,016
  5. Step 5: Solve for x
    x = 27,781,809,626,421,016/186,319,262.16
  6. Step 6: Final answer
    x = 149,108,628.41

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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.