Home / 73,993,780.20-110,990,670.30-72,718,321.80

Finding the Fourth Proportional to 73,993,780.20, 110,990,670.30 and 72,718,321.80

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Solution

The fourth proportional to 73,993,780.20, 110,990,670.30 and 72,718,321.80 is: 109,077,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993,780.20 : 110,990,670.30 = 72,718,321.80 : x
  2. Step 2: Convert to fraction form
    73,993,780.20/110,990,670.30 = 72,718,321.80/x
  3. Step 3: Cross multiply
    73,993,780.20x = 110,990,670.30 × 72,718,321.80
  4. Step 4: Simplify right side
    73,993,780.20x = 8,071,055,279,673,102
  5. Step 5: Solve for x
    x = 8,071,055,279,673,102/73,993,780.20
  6. Step 6: Final answer
    x = 109,077,482.70

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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.