Home / 609,280,321.14-840,783,261.60-330,815,472.30

Finding the Fourth Proportional to 609,280,321.14, 840,783,261.60 and 330,815,472.30

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Solution

The fourth proportional to 609,280,321.14, 840,783,261.60 and 330,815,472.30 is: 456,512,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,280,321.14 : 840,783,261.60 = 330,815,472.30 : x
  2. Step 2: Convert to fraction form
    609,280,321.14/840,783,261.60 = 330,815,472.30/x
  3. Step 3: Cross multiply
    609,280,321.14x = 840,783,261.60 × 330,815,472.30
  4. Step 4: Simplify right side
    609,280,321.14x = 278,144,111,788,138,464
  5. Step 5: Solve for x
    x = 278,144,111,788,138,464/609,280,321.14
  6. Step 6: Final answer
    x = 456,512,547.90

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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.