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Finding the Fourth Proportional to 463,603,410.40, 695,405,115.60 and 279,937,400.80

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Solution

The fourth proportional to 463,603,410.40, 695,405,115.60 and 279,937,400.80 is: 419,906,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,603,410.40 : 695,405,115.60 = 279,937,400.80 : x
  2. Step 2: Convert to fraction form
    463,603,410.40/695,405,115.60 = 279,937,400.80/x
  3. Step 3: Cross multiply
    463,603,410.40x = 695,405,115.60 × 279,937,400.80
  4. Step 4: Simplify right side
    463,603,410.40x = 194,669,900,564,087,552
  5. Step 5: Solve for x
    x = 194,669,900,564,087,552/463,603,410.40
  6. Step 6: Final answer
    x = 419,906,101.20

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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.