Home / 280,269,344.57-386,764,199.16-154,818,840.56

Finding the Fourth Proportional to 280,269,344.57, 386,764,199.16 and 154,818,840.56

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Solution

The fourth proportional to 280,269,344.57, 386,764,199.16 and 154,818,840.56 is: 213,645,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,269,344.57 : 386,764,199.16 = 154,818,840.56 : x
  2. Step 2: Convert to fraction form
    280,269,344.57/386,764,199.16 = 154,818,840.56/x
  3. Step 3: Cross multiply
    280,269,344.57x = 386,764,199.16 × 154,818,840.56
  4. Step 4: Simplify right side
    280,269,344.57x = 59,878,384,883,731,216
  5. Step 5: Solve for x
    x = 59,878,384,883,731,216/280,269,344.57
  6. Step 6: Final answer
    x = 213,645,859.05

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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.