Home / 553,538,549.25-763,899,141.20-306,035,846.73

Finding the Fourth Proportional to 553,538,549.25, 763,899,141.20 and 306,035,846.73

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Solution

The fourth proportional to 553,538,549.25, 763,899,141.20 and 306,035,846.73 is: 422,338,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,538,549.25 : 763,899,141.20 = 306,035,846.73 : x
  2. Step 2: Convert to fraction form
    553,538,549.25/763,899,141.20 = 306,035,846.73/x
  3. Step 3: Cross multiply
    553,538,549.25x = 763,899,141.20 × 306,035,846.73
  4. Step 4: Simplify right side
    553,538,549.25x = 233,780,520,491,931,680
  5. Step 5: Solve for x
    x = 233,780,520,491,931,680/553,538,549.25
  6. Step 6: Final answer
    x = 422,338,283.05

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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.