Home / 921,545,566.35-1,382,344,104.78-299,760,800.40

Finding the Fourth Proportional to 921,545,566.35, 1,382,344,104.78 and 299,760,800.40

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Solution

The fourth proportional to 921,545,566.35, 1,382,344,104.78 and 299,760,800.40 is: 449,649,578.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,545,566.35 : 1,382,344,104.78 = 299,760,800.40 : x
  2. Step 2: Convert to fraction form
    921,545,566.35/1,382,344,104.78 = 299,760,800.40/x
  3. Step 3: Cross multiply
    921,545,566.35x = 1,382,344,104.78 × 299,760,800.40
  4. Step 4: Simplify right side
    921,545,566.35x = 414,372,575,277,074,240
  5. Step 5: Solve for x
    x = 414,372,575,277,074,240/921,545,566.35
  6. Step 6: Final answer
    x = 449,649,578.28

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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.