Home / 77,844,540-107,427,707.52-43,039,477.20

Finding the Fourth Proportional to 77,844,540, 107,427,707.52 and 43,039,477.20

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Solution

The fourth proportional to 77,844,540, 107,427,707.52 and 43,039,477.20 is: 59,395,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,844,540 : 107,427,707.52 = 43,039,477.20 : x
  2. Step 2: Convert to fraction form
    77,844,540/107,427,707.52 = 43,039,477.20/x
  3. Step 3: Cross multiply
    77,844,540x = 107,427,707.52 × 43,039,477.20
  4. Step 4: Simplify right side
    77,844,540x = 4,623,632,368,455,309
  5. Step 5: Solve for x
    x = 4,623,632,368,455,309/77,844,540
  6. Step 6: Final answer
    x = 59,395,718.29

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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.