Home / 56,850,125.69-78,453,409.82-30,744,643.51

Finding the Fourth Proportional to 56,850,125.69, 78,453,409.82 and 30,744,643.51

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Solution

The fourth proportional to 56,850,125.69, 78,453,409.82 and 30,744,643.51 is: 42,427,735.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,850,125.69 : 78,453,409.82 = 30,744,643.51 : x
  2. Step 2: Convert to fraction form
    56,850,125.69/78,453,409.82 = 30,744,643.51/x
  3. Step 3: Cross multiply
    56,850,125.69x = 78,453,409.82 × 30,744,643.51
  4. Step 4: Simplify right side
    56,850,125.69x = 2,412,022,117,119,469
  5. Step 5: Solve for x
    x = 2,412,022,117,119,469/56,850,125.69
  6. Step 6: Final answer
    x = 42,427,735.87

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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.