Home / 522,910,145.75-721,592,723.97-299,731,830.39

Finding the Fourth Proportional to 522,910,145.75, 721,592,723.97 and 299,731,830.39

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Solution

The fourth proportional to 522,910,145.75, 721,592,723.97 and 299,731,830.39 is: 413,616,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,910,145.75 : 721,592,723.97 = 299,731,830.39 : x
  2. Step 2: Convert to fraction form
    522,910,145.75/721,592,723.97 = 299,731,830.39/x
  3. Step 3: Cross multiply
    522,910,145.75x = 721,592,723.97 × 299,731,830.39
  4. Step 4: Simplify right side
    522,910,145.75x = 216,284,307,951,634,112
  5. Step 5: Solve for x
    x = 216,284,307,951,634,112/522,910,145.75
  6. Step 6: Final answer
    x = 413,616,583.48

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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.