Home / 384,843,439.31-531,063,492.12-217,569,699.54

Finding the Fourth Proportional to 384,843,439.31, 531,063,492.12 and 217,569,699.54

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Solution

The fourth proportional to 384,843,439.31, 531,063,492.12 and 217,569,699.54 is: 300,234,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,843,439.31 : 531,063,492.12 = 217,569,699.54 : x
  2. Step 2: Convert to fraction form
    384,843,439.31/531,063,492.12 = 217,569,699.54/x
  3. Step 3: Cross multiply
    384,843,439.31x = 531,063,492.12 × 217,569,699.54
  4. Step 4: Simplify right side
    384,843,439.31x = 115,543,324,417,211,552
  5. Step 5: Solve for x
    x = 115,543,324,417,211,552/384,843,439.31
  6. Step 6: Final answer
    x = 300,234,621.71

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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.