Home / 427,561,943.90-641,342,915.85-366,339,940.70

Finding the Fourth Proportional to 427,561,943.90, 641,342,915.85 and 366,339,940.70

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Solution

The fourth proportional to 427,561,943.90, 641,342,915.85 and 366,339,940.70 is: 549,509,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,561,943.90 : 641,342,915.85 = 366,339,940.70 : x
  2. Step 2: Convert to fraction form
    427,561,943.90/641,342,915.85 = 366,339,940.70/x
  3. Step 3: Cross multiply
    427,561,943.90x = 641,342,915.85 × 366,339,940.70
  4. Step 4: Simplify right side
    427,561,943.90x = 234,949,525,760,854,080
  5. Step 5: Solve for x
    x = 234,949,525,760,854,080/427,561,943.90
  6. Step 6: Final answer
    x = 549,509,911.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.