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Finding the Fourth Proportional to 621,728,273.60, 932,592,410.40 and 440,180,446.40

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Solution

The fourth proportional to 621,728,273.60, 932,592,410.40 and 440,180,446.40 is: 660,270,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,728,273.60 : 932,592,410.40 = 440,180,446.40 : x
  2. Step 2: Convert to fraction form
    621,728,273.60/932,592,410.40 = 440,180,446.40/x
  3. Step 3: Cross multiply
    621,728,273.60x = 932,592,410.40 × 440,180,446.40
  4. Step 4: Simplify right side
    621,728,273.60x = 410,508,943,519,123,968
  5. Step 5: Solve for x
    x = 410,508,943,519,123,968/621,728,273.60
  6. Step 6: Final answer
    x = 660,270,669.60

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1.5x scale

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.