Home / 223,102,386.72-307,888,770.60-123,987,311.82

Finding the Fourth Proportional to 223,102,386.72, 307,888,770.60 and 123,987,311.82

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Solution

The fourth proportional to 223,102,386.72, 307,888,770.60 and 123,987,311.82 is: 171,106,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,102,386.72 : 307,888,770.60 = 123,987,311.82 : x
  2. Step 2: Convert to fraction form
    223,102,386.72/307,888,770.60 = 123,987,311.82/x
  3. Step 3: Cross multiply
    223,102,386.72x = 307,888,770.60 × 123,987,311.82
  4. Step 4: Simplify right side
    223,102,386.72x = 38,174,301,006,258,648
  5. Step 5: Solve for x
    x = 38,174,301,006,258,648/223,102,386.72
  6. Step 6: Final answer
    x = 171,106,645.55

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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.