Home / 561,105,390.20-841,658,085.30-172,893,644.60

Finding the Fourth Proportional to 561,105,390.20, 841,658,085.30 and 172,893,644.60

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Solution

The fourth proportional to 561,105,390.20, 841,658,085.30 and 172,893,644.60 is: 259,340,466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,105,390.20 : 841,658,085.30 = 172,893,644.60 : x
  2. Step 2: Convert to fraction form
    561,105,390.20/841,658,085.30 = 172,893,644.60/x
  3. Step 3: Cross multiply
    561,105,390.20x = 841,658,085.30 × 172,893,644.60
  4. Step 4: Simplify right side
    561,105,390.20x = 145,517,333,874,574,656
  5. Step 5: Solve for x
    x = 145,517,333,874,574,656/561,105,390.20
  6. Step 6: Final answer
    x = 259,340,466.90

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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.