Home / 19,991,421.40-29,987,132.43-4,845,352.90

Finding the Fourth Proportional to 19,991,421.40, 29,987,132.43 and 4,845,352.90

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Solution

The fourth proportional to 19,991,421.40, 29,987,132.43 and 4,845,352.90 is: 7,268,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991,421.40 : 29,987,132.43 = 4,845,352.90 : x
  2. Step 2: Convert to fraction form
    19,991,421.40/29,987,132.43 = 4,845,352.90/x
  3. Step 3: Cross multiply
    19,991,421.40x = 29,987,132.43 × 4,845,352.90
  4. Step 4: Simplify right side
    19,991,421.40x = 145,298,239,082,384.56
  5. Step 5: Solve for x
    x = 145,298,239,082,384.56/19,991,421.40
  6. Step 6: Final answer
    x = 7,268,029.43

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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.