Home / 257,906,079-355,908,873.60-140,431,128.84

Finding the Fourth Proportional to 257,906,079, 355,908,873.60 and 140,431,128.84

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Solution

The fourth proportional to 257,906,079, 355,908,873.60 and 140,431,128.84 is: 193,794,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,906,079 : 355,908,873.60 = 140,431,128.84 : x
  2. Step 2: Convert to fraction form
    257,906,079/355,908,873.60 = 140,431,128.84/x
  3. Step 3: Cross multiply
    257,906,079x = 355,908,873.60 × 140,431,128.84
  4. Step 4: Simplify right side
    257,906,079x = 49,980,684,883,820,880
  5. Step 5: Solve for x
    x = 49,980,684,883,820,880/257,906,079
  6. Step 6: Final answer
    x = 193,794,132.65

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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.