Home / 703,298,688.72-1,055,045,044.04-408,332,721.90

Finding the Fourth Proportional to 703,298,688.72, 1,055,045,044.04 and 408,332,721.90

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Solution

The fourth proportional to 703,298,688.72, 1,055,045,044.04 and 408,332,721.90 is: 612,555,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,298,688.72 : 1,055,045,044.04 = 408,332,721.90 : x
  2. Step 2: Convert to fraction form
    703,298,688.72/1,055,045,044.04 = 408,332,721.90/x
  3. Step 3: Cross multiply
    703,298,688.72x = 1,055,045,044.04 × 408,332,721.90
  4. Step 4: Simplify right side
    703,298,688.72x = 430,809,414,557,916,864
  5. Step 5: Solve for x
    x = 430,809,414,557,916,864/703,298,688.72
  6. Step 6: Final answer
    x = 612,555,407.07

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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.