Home / 285,091,621.56-393,426,437.64-154,711,429.56

Finding the Fourth Proportional to 285,091,621.56, 393,426,437.64 and 154,711,429.56

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Solution

The fourth proportional to 285,091,621.56, 393,426,437.64 and 154,711,429.56 is: 213,501,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,091,621.56 : 393,426,437.64 = 154,711,429.56 : x
  2. Step 2: Convert to fraction form
    285,091,621.56/393,426,437.64 = 154,711,429.56/x
  3. Step 3: Cross multiply
    285,091,621.56x = 393,426,437.64 × 154,711,429.56
  4. Step 4: Simplify right side
    285,091,621.56x = 60,867,566,593,982,592
  5. Step 5: Solve for x
    x = 60,867,566,593,982,592/285,091,621.56
  6. Step 6: Final answer
    x = 213,501,772.73

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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.