Home / 400,470,697.62-552,622,770.18-221,842,490.40

Finding the Fourth Proportional to 400,470,697.62, 552,622,770.18 and 221,842,490.40

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Solution

The fourth proportional to 400,470,697.62, 552,622,770.18 and 221,842,490.40 is: 306,127,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,470,697.62 : 552,622,770.18 = 221,842,490.40 : x
  2. Step 2: Convert to fraction form
    400,470,697.62/552,622,770.18 = 221,842,490.40/x
  3. Step 3: Cross multiply
    400,470,697.62x = 552,622,770.18 × 221,842,490.40
  4. Step 4: Simplify right side
    400,470,697.62x = 122,595,211,588,478,048
  5. Step 5: Solve for x
    x = 122,595,211,588,478,048/400,470,697.62
  6. Step 6: Final answer
    x = 306,127,794.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.