Home / 219,030,286-328,868,400.90-122,175,229.36

Finding the Fourth Proportional to 219,030,286, 328,868,400.90 and 122,175,229.36

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Solution

The fourth proportional to 219,030,286, 328,868,400.90 and 122,175,229.36 is: 183,442,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,030,286 : 328,868,400.90 = 122,175,229.36 : x
  2. Step 2: Convert to fraction form
    219,030,286/328,868,400.90 = 122,175,229.36/x
  3. Step 3: Cross multiply
    219,030,286x = 328,868,400.90 × 122,175,229.36
  4. Step 4: Simplify right side
    219,030,286x = 40,179,572,309,213,928
  5. Step 5: Solve for x
    x = 40,179,572,309,213,928/219,030,286
  6. Step 6: Final answer
    x = 183,442,997.97

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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.