Home / 479,682,258.64-661,966,080.60-281,447,126.16

Finding the Fourth Proportional to 479,682,258.64, 661,966,080.60 and 281,447,126.16

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Solution

The fourth proportional to 479,682,258.64, 661,966,080.60 and 281,447,126.16 is: 388,399,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,682,258.64 : 661,966,080.60 = 281,447,126.16 : x
  2. Step 2: Convert to fraction form
    479,682,258.64/661,966,080.60 = 281,447,126.16/x
  3. Step 3: Cross multiply
    479,682,258.64x = 661,966,080.60 × 281,447,126.16
  4. Step 4: Simplify right side
    479,682,258.64x = 186,308,451,000,268,960
  5. Step 5: Solve for x
    x = 186,308,451,000,268,960/479,682,258.64
  6. Step 6: Final answer
    x = 388,399,711.78

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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.