Home / 601,720,331-830,022,255.38-378,348,371.38

Finding the Fourth Proportional to 601,720,331, 830,022,255.38 and 378,348,371.38

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Solution

The fourth proportional to 601,720,331, 830,022,255.38 and 378,348,371.38 is: 521,899,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,720,331 : 830,022,255.38 = 378,348,371.38 : x
  2. Step 2: Convert to fraction form
    601,720,331/830,022,255.38 = 378,348,371.38/x
  3. Step 3: Cross multiply
    601,720,331x = 830,022,255.38 × 378,348,371.38
  4. Step 4: Simplify right side
    601,720,331x = 314,037,568,532,177,408
  5. Step 5: Solve for x
    x = 314,037,568,532,177,408/601,720,331
  6. Step 6: Final answer
    x = 521,899,547.60

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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.