Home / 40,293,849.76-55,603,890-21,958,741.60

Finding the Fourth Proportional to 40,293,849.76, 55,603,890 and 21,958,741.60

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Solution

The fourth proportional to 40,293,849.76, 55,603,890 and 21,958,741.60 is: 30,302,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,293,849.76 : 55,603,890 = 21,958,741.60 : x
  2. Step 2: Convert to fraction form
    40,293,849.76/55,603,890 = 21,958,741.60/x
  3. Step 3: Cross multiply
    40,293,849.76x = 55,603,890 × 21,958,741.60
  4. Step 4: Simplify right side
    40,293,849.76x = 1,220,991,452,464,824
  5. Step 5: Solve for x
    x = 1,220,991,452,464,824/40,293,849.76
  6. Step 6: Final answer
    x = 30,302,179.11

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1.5x scale

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.