Home / 74,681,790.33-111,958,789.82-28,656,688.17

Finding the Fourth Proportional to 74,681,790.33, 111,958,789.82 and 28,656,688.17

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Solution

The fourth proportional to 74,681,790.33, 111,958,789.82 and 28,656,688.17 is: 42,960,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681,790.33 : 111,958,789.82 = 28,656,688.17 : x
  2. Step 2: Convert to fraction form
    74,681,790.33/111,958,789.82 = 28,656,688.17/x
  3. Step 3: Cross multiply
    74,681,790.33x = 111,958,789.82 × 28,656,688.17
  4. Step 4: Simplify right side
    74,681,790.33x = 3,208,368,127,619,027
  5. Step 5: Solve for x
    x = 3,208,368,127,619,027/74,681,790.33
  6. Step 6: Final answer
    x = 42,960,514.38

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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.