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Finding the Fourth Proportional to 256,608,863.70, 384,913,295.55 and 251,507,030.10

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Solution

The fourth proportional to 256,608,863.70, 384,913,295.55 and 251,507,030.10 is: 377,260,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,863.70 : 384,913,295.55 = 251,507,030.10 : x
  2. Step 2: Convert to fraction form
    256,608,863.70/384,913,295.55 = 251,507,030.10/x
  3. Step 3: Cross multiply
    256,608,863.70x = 384,913,295.55 × 251,507,030.10
  4. Step 4: Simplify right side
    256,608,863.70x = 96,808,399,809,784,048
  5. Step 5: Solve for x
    x = 96,808,399,809,784,048/256,608,863.70
  6. Step 6: Final answer
    x = 377,260,545.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.