Home / 442,867,986.60-664,301,979.90-440,317,069.80

Finding the Fourth Proportional to 442,867,986.60, 664,301,979.90 and 440,317,069.80

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Solution

The fourth proportional to 442,867,986.60, 664,301,979.90 and 440,317,069.80 is: 660,475,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,986.60 : 664,301,979.90 = 440,317,069.80 : x
  2. Step 2: Convert to fraction form
    442,867,986.60/664,301,979.90 = 440,317,069.80/x
  3. Step 3: Cross multiply
    442,867,986.60x = 664,301,979.90 × 440,317,069.80
  4. Step 4: Simplify right side
    442,867,986.60x = 292,503,501,251,906,496
  5. Step 5: Solve for x
    x = 292,503,501,251,906,496/442,867,986.60
  6. Step 6: Final answer
    x = 660,475,604.70

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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.