Home / 259,081,379.24-388,564,743.90-74,808,856.40

Finding the Fourth Proportional to 259,081,379.24, 388,564,743.90 and 74,808,856.40

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Solution

The fourth proportional to 259,081,379.24, 388,564,743.90 and 74,808,856.40 is: 112,196,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,081,379.24 : 388,564,743.90 = 74,808,856.40 : x
  2. Step 2: Convert to fraction form
    259,081,379.24/388,564,743.90 = 74,808,856.40/x
  3. Step 3: Cross multiply
    259,081,379.24x = 388,564,743.90 × 74,808,856.40
  4. Step 4: Simplify right side
    259,081,379.24x = 29,068,084,128,517,876
  5. Step 5: Solve for x
    x = 29,068,084,128,517,876/259,081,379.24
  6. Step 6: Final answer
    x = 112,196,732.22

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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.