Home / 393,671,531.29-543,283,207.22-226,407,905.95

Finding the Fourth Proportional to 393,671,531.29, 543,283,207.22 and 226,407,905.95

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Solution

The fourth proportional to 393,671,531.29, 543,283,207.22 and 226,407,905.95 is: 312,452,396.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,671,531.29 : 543,283,207.22 = 226,407,905.95 : x
  2. Step 2: Convert to fraction form
    393,671,531.29/543,283,207.22 = 226,407,905.95/x
  3. Step 3: Cross multiply
    393,671,531.29x = 543,283,207.22 × 226,407,905.95
  4. Step 4: Simplify right side
    393,671,531.29x = 123,003,613,284,480,128
  5. Step 5: Solve for x
    x = 123,003,613,284,480,128/393,671,531.29
  6. Step 6: Final answer
    x = 312,452,396.24

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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.