Home / 13,575,458-18,734,501.62-7,380,921.76

Finding the Fourth Proportional to 13,575,458, 18,734,501.62 and 7,380,921.76

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Solution

The fourth proportional to 13,575,458, 18,734,501.62 and 7,380,921.76 is: 10,185,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575,458 : 18,734,501.62 = 7,380,921.76 : x
  2. Step 2: Convert to fraction form
    13,575,458/18,734,501.62 = 7,380,921.76/x
  3. Step 3: Cross multiply
    13,575,458x = 18,734,501.62 × 7,380,921.76
  4. Step 4: Simplify right side
    13,575,458x = 138,277,890,669,813.25
  5. Step 5: Solve for x
    x = 138,277,890,669,813.25/13,575,458
  6. Step 6: Final answer
    x = 10,185,872.97

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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.