Home / 472,405,646.40-708,608,469.60-149,388,532.80

Finding the Fourth Proportional to 472,405,646.40, 708,608,469.60 and 149,388,532.80

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Solution

The fourth proportional to 472,405,646.40, 708,608,469.60 and 149,388,532.80 is: 224,082,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,405,646.40 : 708,608,469.60 = 149,388,532.80 : x
  2. Step 2: Convert to fraction form
    472,405,646.40/708,608,469.60 = 149,388,532.80/x
  3. Step 3: Cross multiply
    472,405,646.40x = 708,608,469.60 × 149,388,532.80
  4. Step 4: Simplify right side
    472,405,646.40x = 105,857,979,603,197,408
  5. Step 5: Solve for x
    x = 105,857,979,603,197,408/472,405,646.40
  6. Step 6: Final answer
    x = 224,082,799.20

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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.