Home / 30,729,016-42,407,742.48-16,977,684.64

Finding the Fourth Proportional to 30,729,016, 42,407,742.48 and 16,977,684.64

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Solution

The fourth proportional to 30,729,016, 42,407,742.48 and 16,977,684.64 is: 23,430,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,729,016 : 42,407,742.48 = 16,977,684.64 : x
  2. Step 2: Convert to fraction form
    30,729,016/42,407,742.48 = 16,977,684.64/x
  3. Step 3: Cross multiply
    30,729,016x = 42,407,742.48 × 16,977,684.64
  4. Step 4: Simplify right side
    30,729,016x = 719,985,278,119,771.50
  5. Step 5: Solve for x
    x = 719,985,278,119,771.50/30,729,016
  6. Step 6: Final answer
    x = 23,430,144.27

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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.