Home / 1,238,694,491.51-1,858,215,898.35-398,055,404.26

Finding the Fourth Proportional to 1,238,694,491.51, 1,858,215,898.35 and 398,055,404.26

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Solution

The fourth proportional to 1,238,694,491.51, 1,858,215,898.35 and 398,055,404.26 is: 597,139,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,694,491.51 : 1,858,215,898.35 = 398,055,404.26 : x
  2. Step 2: Convert to fraction form
    1,238,694,491.51/1,858,215,898.35 = 398,055,404.26/x
  3. Step 3: Cross multiply
    1,238,694,491.51x = 1,858,215,898.35 × 398,055,404.26
  4. Step 4: Simplify right side
    1,238,694,491.51x = 739,672,880,615,422,720
  5. Step 5: Solve for x
    x = 739,672,880,615,422,720/1,238,694,491.51
  6. Step 6: Final answer
    x = 597,139,073.18

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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.