Home / 409,486,909-565,095,694.46-233,272,292.72

Finding the Fourth Proportional to 409,486,909, 565,095,694.46 and 233,272,292.72

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Solution

The fourth proportional to 409,486,909, 565,095,694.46 and 233,272,292.72 is: 321,917,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,486,909 : 565,095,694.46 = 233,272,292.72 : x
  2. Step 2: Convert to fraction form
    409,486,909/565,095,694.46 = 233,272,292.72/x
  3. Step 3: Cross multiply
    409,486,909x = 565,095,694.46 × 233,272,292.72
  4. Step 4: Simplify right side
    409,486,909x = 131,821,168,252,884,816
  5. Step 5: Solve for x
    x = 131,821,168,252,884,816/409,486,909
  6. Step 6: Final answer
    x = 321,917,905.93

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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.