Home / 72,900,170.70-109,366,002.45-21,787,356.30

Finding the Fourth Proportional to 72,900,170.70, 109,366,002.45 and 21,787,356.30

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Solution

The fourth proportional to 72,900,170.70, 109,366,002.45 and 21,787,356.30 is: 32,685,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,900,170.70 : 109,366,002.45 = 21,787,356.30 : x
  2. Step 2: Convert to fraction form
    72,900,170.70/109,366,002.45 = 21,787,356.30/x
  3. Step 3: Cross multiply
    72,900,170.70x = 109,366,002.45 × 21,787,356.30
  4. Step 4: Simplify right side
    72,900,170.70x = 2,382,796,062,484,823
  5. Step 5: Solve for x
    x = 2,382,796,062,484,823/72,900,170.70
  6. Step 6: Final answer
    x = 32,685,740.51

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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.