Home / 73,106,972.20-109,660,458.30-72,603,087.40

Finding the Fourth Proportional to 73,106,972.20, 109,660,458.30 and 72,603,087.40

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Solution

The fourth proportional to 73,106,972.20, 109,660,458.30 and 72,603,087.40 is: 108,904,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106,972.20 : 109,660,458.30 = 72,603,087.40 : x
  2. Step 2: Convert to fraction form
    73,106,972.20/109,660,458.30 = 72,603,087.40/x
  3. Step 3: Cross multiply
    73,106,972.20x = 109,660,458.30 × 72,603,087.40
  4. Step 4: Simplify right side
    73,106,972.20x = 7,961,687,838,278,956
  5. Step 5: Solve for x
    x = 7,961,687,838,278,956/73,106,972.20
  6. Step 6: Final answer
    x = 108,904,631.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.