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Finding the Fourth Proportional to 447,102,754.80, 669,310,439.40 and 265,256,329.20

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Solution

The fourth proportional to 447,102,754.80, 669,310,439.40 and 265,256,329.20 is: 397,087,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,102,754.80 : 669,310,439.40 = 265,256,329.20 : x
  2. Step 2: Convert to fraction form
    447,102,754.80/669,310,439.40 = 265,256,329.20/x
  3. Step 3: Cross multiply
    447,102,754.80x = 669,310,439.40 × 265,256,329.20
  4. Step 4: Simplify right side
    447,102,754.80x = 177,538,830,250,483,040
  5. Step 5: Solve for x
    x = 177,538,830,250,483,040/447,102,754.80
  6. Step 6: Final answer
    x = 397,087,310.12

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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.