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Finding the Fourth Proportional to 398,604,367.40, 597,906,551.10 and 383,298,866.60

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Solution

The fourth proportional to 398,604,367.40, 597,906,551.10 and 383,298,866.60 is: 574,948,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,604,367.40 : 597,906,551.10 = 383,298,866.60 : x
  2. Step 2: Convert to fraction form
    398,604,367.40/597,906,551.10 = 383,298,866.60/x
  3. Step 3: Cross multiply
    398,604,367.40x = 597,906,551.10 × 383,298,866.60
  4. Step 4: Simplify right side
    398,604,367.40x = 229,176,903,369,344,992
  5. Step 5: Solve for x
    x = 229,176,903,369,344,992/398,604,367.40
  6. Step 6: Final answer
    x = 574,948,299.90

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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.