Home / 403,603,155.28-556,972,332.96-217,964,153.08

Finding the Fourth Proportional to 403,603,155.28, 556,972,332.96 and 217,964,153.08

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Solution

The fourth proportional to 403,603,155.28, 556,972,332.96 and 217,964,153.08 is: 300,790,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,155.28 : 556,972,332.96 = 217,964,153.08 : x
  2. Step 2: Convert to fraction form
    403,603,155.28/556,972,332.96 = 217,964,153.08/x
  3. Step 3: Cross multiply
    403,603,155.28x = 556,972,332.96 × 217,964,153.08
  4. Step 4: Simplify right side
    403,603,155.28x = 121,400,002,842,043,104
  5. Step 5: Solve for x
    x = 121,400,002,842,043,104/403,603,155.28
  6. Step 6: Final answer
    x = 300,790,519.73

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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.