Home / 970,890,694.20-1,456,524,998.10-280,820,460.60

Finding the Fourth Proportional to 970,890,694.20, 1,456,524,998.10 and 280,820,460.60

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Solution

The fourth proportional to 970,890,694.20, 1,456,524,998.10 and 280,820,460.60 is: 421,285,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,890,694.20 : 1,456,524,998.10 = 280,820,460.60 : x
  2. Step 2: Convert to fraction form
    970,890,694.20/1,456,524,998.10 = 280,820,460.60/x
  3. Step 3: Cross multiply
    970,890,694.20x = 1,456,524,998.10 × 280,820,460.60
  4. Step 4: Simplify right side
    970,890,694.20x = 409,022,020,841,856,128
  5. Step 5: Solve for x
    x = 409,022,020,841,856,128/970,890,694.20
  6. Step 6: Final answer
    x = 421,285,344.77

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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.