Home / 43,338,687.72-65,030,381.64-20,311,961.58

Finding the Fourth Proportional to 43,338,687.72, 65,030,381.64 and 20,311,961.58

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Solution

The fourth proportional to 43,338,687.72, 65,030,381.64 and 20,311,961.58 is: 30,478,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,338,687.72 : 65,030,381.64 = 20,311,961.58 : x
  2. Step 2: Convert to fraction form
    43,338,687.72/65,030,381.64 = 20,311,961.58/x
  3. Step 3: Cross multiply
    43,338,687.72x = 65,030,381.64 × 20,311,961.58
  4. Step 4: Simplify right side
    43,338,687.72x = 1,320,894,613,404,417.25
  5. Step 5: Solve for x
    x = 1,320,894,613,404,417.25/43,338,687.72
  6. Step 6: Final answer
    x = 30,478,417.39

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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.