Home / 725,668,814.91-1,001,507,981.85-412,450,111.23

Finding the Fourth Proportional to 725,668,814.91, 1,001,507,981.85 and 412,450,111.23

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Solution

The fourth proportional to 725,668,814.91, 1,001,507,981.85 and 412,450,111.23 is: 569,229,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,668,814.91 : 1,001,507,981.85 = 412,450,111.23 : x
  2. Step 2: Convert to fraction form
    725,668,814.91/1,001,507,981.85 = 412,450,111.23/x
  3. Step 3: Cross multiply
    725,668,814.91x = 1,001,507,981.85 × 412,450,111.23
  4. Step 4: Simplify right side
    725,668,814.91x = 413,072,078,512,493,312
  5. Step 5: Solve for x
    x = 413,072,078,512,493,312/725,668,814.91
  6. Step 6: Final answer
    x = 569,229,474.97

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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.