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Finding the Fourth Proportional to 404,366,977.60, 606,550,466.40 and 396,304,820.80

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Solution

The fourth proportional to 404,366,977.60, 606,550,466.40 and 396,304,820.80 is: 594,457,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,366,977.60 : 606,550,466.40 = 396,304,820.80 : x
  2. Step 2: Convert to fraction form
    404,366,977.60/606,550,466.40 = 396,304,820.80/x
  3. Step 3: Cross multiply
    404,366,977.60x = 606,550,466.40 × 396,304,820.80
  4. Step 4: Simplify right side
    404,366,977.60x = 240,378,873,892,808,416
  5. Step 5: Solve for x
    x = 240,378,873,892,808,416/404,366,977.60
  6. Step 6: Final answer
    x = 594,457,231.20

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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.