Home / 355,067,272.02-490,007,967.91-198,434,374.39

Finding the Fourth Proportional to 355,067,272.02, 490,007,967.91 and 198,434,374.39

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Solution

The fourth proportional to 355,067,272.02, 490,007,967.91 and 198,434,374.39 is: 273,847,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067,272.02 : 490,007,967.91 = 198,434,374.39 : x
  2. Step 2: Convert to fraction form
    355,067,272.02/490,007,967.91 = 198,434,374.39/x
  3. Step 3: Cross multiply
    355,067,272.02x = 490,007,967.91 × 198,434,374.39
  4. Step 4: Simplify right side
    355,067,272.02x = 97,234,424,559,010,064
  5. Step 5: Solve for x
    x = 97,234,424,559,010,064/355,067,272.02
  6. Step 6: Final answer
    x = 273,847,893.69

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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.