Home / 355,067,273.90-490,007,970.54-198,434,376.28

Finding the Fourth Proportional to 355,067,273.90, 490,007,970.54 and 198,434,376.28

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Solution

The fourth proportional to 355,067,273.90, 490,007,970.54 and 198,434,376.28 is: 273,847,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067,273.90 : 490,007,970.54 = 198,434,376.28 : x
  2. Step 2: Convert to fraction form
    355,067,273.90/490,007,970.54 = 198,434,376.28/x
  3. Step 3: Cross multiply
    355,067,273.90x = 490,007,970.54 × 198,434,376.28
  4. Step 4: Simplify right side
    355,067,273.90x = 97,234,426,005,433,808
  5. Step 5: Solve for x
    x = 97,234,426,005,433,808/355,067,273.90
  6. Step 6: Final answer
    x = 273,847,896.31

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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.