Home / 231,512,598.72-319,475,653.02-137,430,767.16

Finding the Fourth Proportional to 231,512,598.72, 319,475,653.02 and 137,430,767.16

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Solution

The fourth proportional to 231,512,598.72, 319,475,653.02 and 137,430,767.16 is: 189,647,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,512,598.72 : 319,475,653.02 = 137,430,767.16 : x
  2. Step 2: Convert to fraction form
    231,512,598.72/319,475,653.02 = 137,430,767.16/x
  3. Step 3: Cross multiply
    231,512,598.72x = 319,475,653.02 × 137,430,767.16
  4. Step 4: Simplify right side
    231,512,598.72x = 43,905,784,083,480,568
  5. Step 5: Solve for x
    x = 43,905,784,083,480,568/231,512,598.72
  6. Step 6: Final answer
    x = 189,647,493.60

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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.