Home / 14,689,441.26-20,271,920.63-8,163,345.78

Finding the Fourth Proportional to 14,689,441.26, 20,271,920.63 and 8,163,345.78

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Solution

The fourth proportional to 14,689,441.26, 20,271,920.63 and 8,163,345.78 is: 11,265,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689,441.26 : 20,271,920.63 = 8,163,345.78 : x
  2. Step 2: Convert to fraction form
    14,689,441.26/20,271,920.63 = 8,163,345.78/x
  3. Step 3: Cross multiply
    14,689,441.26x = 20,271,920.63 × 8,163,345.78
  4. Step 4: Simplify right side
    14,689,441.26x = 165,486,697,686,588.72
  5. Step 5: Solve for x
    x = 165,486,697,686,588.72/14,689,441.26
  6. Step 6: Final answer
    x = 11,265,690.42

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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.