Home / 40,293,765.64-55,603,774.38-21,958,657.48

Finding the Fourth Proportional to 40,293,765.64, 55,603,774.38 and 21,958,657.48

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Solution

The fourth proportional to 40,293,765.64, 55,603,774.38 and 21,958,657.48 is: 30,302,063.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,293,765.64 : 55,603,774.38 = 21,958,657.48 : x
  2. Step 2: Convert to fraction form
    40,293,765.64/55,603,774.38 = 21,958,657.48/x
  3. Step 3: Cross multiply
    40,293,765.64x = 55,603,774.38 × 21,958,657.48
  4. Step 4: Simplify right side
    40,293,765.64x = 1,220,984,236,205,619.50
  5. Step 5: Solve for x
    x = 1,220,984,236,205,619.50/40,293,765.64
  6. Step 6: Final answer
    x = 30,302,063.28

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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.