Home / 1,376,435,654.47-1,899,709,007.09-812,058,515.47

Finding the Fourth Proportional to 1,376,435,654.47, 1,899,709,007.09 and 812,058,515.47

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Solution

The fourth proportional to 1,376,435,654.47, 1,899,709,007.09 and 812,058,515.47 is: 1,120,775,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,435,654.47 : 1,899,709,007.09 = 812,058,515.47 : x
  2. Step 2: Convert to fraction form
    1,376,435,654.47/1,899,709,007.09 = 812,058,515.47/x
  3. Step 3: Cross multiply
    1,376,435,654.47x = 1,899,709,007.09 × 812,058,515.47
  4. Step 4: Simplify right side
    1,376,435,654.47x = 1,542,674,876,122,493,184
  5. Step 5: Solve for x
    x = 1,542,674,876,122,493,184/1,376,435,654.47
  6. Step 6: Final answer
    x = 1,120,775,149.29

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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.