Home / 18,991,421.21-28,487,167.46-4,614,501.17

Finding the Fourth Proportional to 18,991,421.21, 28,487,167.46 and 4,614,501.17

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Solution

The fourth proportional to 18,991,421.21, 28,487,167.46 and 4,614,501.17 is: 6,921,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,991,421.21 : 28,487,167.46 = 4,614,501.17 : x
  2. Step 2: Convert to fraction form
    18,991,421.21/28,487,167.46 = 4,614,501.17/x
  3. Step 3: Cross multiply
    18,991,421.21x = 28,487,167.46 × 4,614,501.17
  4. Step 4: Simplify right side
    18,991,421.21x = 131,454,067,408,647.58
  5. Step 5: Solve for x
    x = 131,454,067,408,647.58/18,991,421.21
  6. Step 6: Final answer
    x = 6,921,760.41

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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.