Home / 419,655,811.08-579,128,787.54-231,491,307.72

Finding the Fourth Proportional to 419,655,811.08, 579,128,787.54 and 231,491,307.72

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Solution

The fourth proportional to 419,655,811.08, 579,128,787.54 and 231,491,307.72 is: 319,460,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,655,811.08 : 579,128,787.54 = 231,491,307.72 : x
  2. Step 2: Convert to fraction form
    419,655,811.08/579,128,787.54 = 231,491,307.72/x
  3. Step 3: Cross multiply
    419,655,811.08x = 579,128,787.54 × 231,491,307.72
  4. Step 4: Simplify right side
    419,655,811.08x = 134,063,280,365,932,640
  5. Step 5: Solve for x
    x = 134,063,280,365,932,640/419,655,811.08
  6. Step 6: Final answer
    x = 319,460,083.30

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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.