Home / 403,603,156.59-556,972,334.78-217,964,154.39

Finding the Fourth Proportional to 403,603,156.59, 556,972,334.78 and 217,964,154.39

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Solution

The fourth proportional to 403,603,156.59, 556,972,334.78 and 217,964,154.39 is: 300,790,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,156.59 : 556,972,334.78 = 217,964,154.39 : x
  2. Step 2: Convert to fraction form
    403,603,156.59/556,972,334.78 = 217,964,154.39/x
  3. Step 3: Cross multiply
    403,603,156.59x = 556,972,334.78 × 217,964,154.39
  4. Step 4: Simplify right side
    403,603,156.59x = 121,400,003,967,856,848
  5. Step 5: Solve for x
    x = 121,400,003,967,856,848/403,603,156.59
  6. Step 6: Final answer
    x = 300,790,521.54

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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.