Home / 355,007,008.07-489,900,273.48-198,375,402.14

Finding the Fourth Proportional to 355,007,008.07, 489,900,273.48 and 198,375,402.14

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Solution

The fourth proportional to 355,007,008.07, 489,900,273.48 and 198,375,402.14 is: 273,752,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,007,008.07 : 489,900,273.48 = 198,375,402.14 : x
  2. Step 2: Convert to fraction form
    355,007,008.07/489,900,273.48 = 198,375,402.14/x
  3. Step 3: Cross multiply
    355,007,008.07x = 489,900,273.48 × 198,375,402.14
  4. Step 4: Simplify right side
    355,007,008.07x = 97,184,163,760,030,080
  5. Step 5: Solve for x
    x = 97,184,163,760,030,080/355,007,008.07
  6. Step 6: Final answer
    x = 273,752,803.61

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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.