Home / 72,578,626.20-108,867,939.30-21,456,091.80

Finding the Fourth Proportional to 72,578,626.20, 108,867,939.30 and 21,456,091.80

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Solution

The fourth proportional to 72,578,626.20, 108,867,939.30 and 21,456,091.80 is: 32,184,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,626.20 : 108,867,939.30 = 21,456,091.80 : x
  2. Step 2: Convert to fraction form
    72,578,626.20/108,867,939.30 = 21,456,091.80/x
  3. Step 3: Cross multiply
    72,578,626.20x = 108,867,939.30 × 21,456,091.80
  4. Step 4: Simplify right side
    72,578,626.20x = 2,335,880,499,697,628
  5. Step 5: Solve for x
    x = 2,335,880,499,697,628/72,578,626.20
  6. Step 6: Final answer
    x = 32,184,137.70

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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.