Home / 285,091,639.56-393,426,462.48-154,711,447.56

Finding the Fourth Proportional to 285,091,639.56, 393,426,462.48 and 154,711,447.56

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Solution

The fourth proportional to 285,091,639.56, 393,426,462.48 and 154,711,447.56 is: 213,501,797.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,091,639.56 : 393,426,462.48 = 154,711,447.56 : x
  2. Step 2: Convert to fraction form
    285,091,639.56/393,426,462.48 = 154,711,447.56/x
  3. Step 3: Cross multiply
    285,091,639.56x = 393,426,462.48 × 154,711,447.56
  4. Step 4: Simplify right side
    285,091,639.56x = 60,867,577,518,690,832
  5. Step 5: Solve for x
    x = 60,867,577,518,690,832/285,091,639.56
  6. Step 6: Final answer
    x = 213,501,797.57

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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.