Home / 1,293,109,867-1,939,681,596.66-431,466,859

Finding the Fourth Proportional to 1,293,109,867, 1,939,681,596.66 and 431,466,859

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Solution

The fourth proportional to 1,293,109,867, 1,939,681,596.66 and 431,466,859 is: 647,205,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,109,867 : 1,939,681,596.66 = 431,466,859 : x
  2. Step 2: Convert to fraction form
    1,293,109,867/1,939,681,596.66 = 431,466,859/x
  3. Step 3: Cross multiply
    1,293,109,867x = 1,939,681,596.66 × 431,466,859
  4. Step 4: Simplify right side
    1,293,109,867x = 836,908,325,970,995,072
  5. Step 5: Solve for x
    x = 836,908,325,970,995,072/1,293,109,867
  6. Step 6: Final answer
    x = 647,205,892.81

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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.