Home / 280,269,350.19-386,764,206.91-154,818,846.20

Finding the Fourth Proportional to 280,269,350.19, 386,764,206.91 and 154,818,846.20

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Solution

The fourth proportional to 280,269,350.19, 386,764,206.91 and 154,818,846.20 is: 213,645,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,269,350.19 : 386,764,206.91 = 154,818,846.20 : x
  2. Step 2: Convert to fraction form
    280,269,350.19/386,764,206.91 = 154,818,846.20/x
  3. Step 3: Cross multiply
    280,269,350.19x = 386,764,206.91 × 154,818,846.20
  4. Step 4: Simplify right side
    280,269,350.19x = 59,878,388,265,844,128
  5. Step 5: Solve for x
    x = 59,878,388,265,844,128/280,269,350.19
  6. Step 6: Final answer
    x = 213,645,866.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.