Home / 408,230,216.70-612,345,325.05-391,224,104.70

Finding the Fourth Proportional to 408,230,216.70, 612,345,325.05 and 391,224,104.70

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Solution

The fourth proportional to 408,230,216.70, 612,345,325.05 and 391,224,104.70 is: 586,836,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,230,216.70 : 612,345,325.05 = 391,224,104.70 : x
  2. Step 2: Convert to fraction form
    408,230,216.70/612,345,325.05 = 391,224,104.70/x
  3. Step 3: Cross multiply
    408,230,216.70x = 612,345,325.05 × 391,224,104.70
  4. Step 4: Simplify right side
    408,230,216.70x = 239,564,251,559,916,704
  5. Step 5: Solve for x
    x = 239,564,251,559,916,704/408,230,216.70
  6. Step 6: Final answer
    x = 586,836,157.05

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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.