Home / 553,904,398.72-764,340,453.12-306,324,127.36

Finding the Fourth Proportional to 553,904,398.72, 764,340,453.12 and 306,324,127.36

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Solution

The fourth proportional to 553,904,398.72, 764,340,453.12 and 306,324,127.36 is: 422,700,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,904,398.72 : 764,340,453.12 = 306,324,127.36 : x
  2. Step 2: Convert to fraction form
    553,904,398.72/764,340,453.12 = 306,324,127.36/x
  3. Step 3: Cross multiply
    553,904,398.72x = 764,340,453.12 × 306,324,127.36
  4. Step 4: Simplify right side
    553,904,398.72x = 234,135,922,307,931,008
  5. Step 5: Solve for x
    x = 234,135,922,307,931,008/553,904,398.72
  6. Step 6: Final answer
    x = 422,700,962.20

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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.