Home / 154,809,781.97-213,637,534.00-85,195,162.85

Finding the Fourth Proportional to 154,809,781.97, 213,637,534.00 and 85,195,162.85

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Solution

The fourth proportional to 154,809,781.97, 213,637,534.00 and 85,195,162.85 is: 117,569,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,809,781.97 : 213,637,534.00 = 85,195,162.85 : x
  2. Step 2: Convert to fraction form
    154,809,781.97/213,637,534.00 = 85,195,162.85/x
  3. Step 3: Cross multiply
    154,809,781.97x = 213,637,534.00 × 85,195,162.85
  4. Step 4: Simplify right side
    154,809,781.97x = 18,200,884,498,721,236
  5. Step 5: Solve for x
    x = 18,200,884,498,721,236/154,809,781.97
  6. Step 6: Final answer
    x = 117,569,343.92

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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.