Home / 353,986,663.88-488,499,851.22-205,337,848.52

Finding the Fourth Proportional to 353,986,663.88, 488,499,851.22 and 205,337,848.52

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Solution

The fourth proportional to 353,986,663.88, 488,499,851.22 and 205,337,848.52 is: 283,365,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,986,663.88 : 488,499,851.22 = 205,337,848.52 : x
  2. Step 2: Convert to fraction form
    353,986,663.88/488,499,851.22 = 205,337,848.52/x
  3. Step 3: Cross multiply
    353,986,663.88x = 488,499,851.22 × 205,337,848.52
  4. Step 4: Simplify right side
    353,986,663.88x = 100,307,508,451,854,912
  5. Step 5: Solve for x
    x = 100,307,508,451,854,912/353,986,663.88
  6. Step 6: Final answer
    x = 283,365,218.77

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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.