Home / 77,844,542-107,427,710.28-43,039,479.20

Finding the Fourth Proportional to 77,844,542, 107,427,710.28 and 43,039,479.20

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Solution

The fourth proportional to 77,844,542, 107,427,710.28 and 43,039,479.20 is: 59,395,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,844,542 : 107,427,710.28 = 43,039,479.20 : x
  2. Step 2: Convert to fraction form
    77,844,542/107,427,710.28 = 43,039,479.20/x
  3. Step 3: Cross multiply
    77,844,542x = 107,427,710.28 × 43,039,479.20
  4. Step 4: Simplify right side
    77,844,542x = 4,623,632,702,099,687
  5. Step 5: Solve for x
    x = 4,623,632,702,099,687/77,844,542
  6. Step 6: Final answer
    x = 59,395,721.05

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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.