Home / 30,378,011.53-41,921,761.74-16,439,363.15

Finding the Fourth Proportional to 30,378,011.53, 41,921,761.74 and 16,439,363.15

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Solution

The fourth proportional to 30,378,011.53, 41,921,761.74 and 16,439,363.15 is: 22,686,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,011.53 : 41,921,761.74 = 16,439,363.15 : x
  2. Step 2: Convert to fraction form
    30,378,011.53/41,921,761.74 = 16,439,363.15/x
  3. Step 3: Cross multiply
    30,378,011.53x = 41,921,761.74 × 16,439,363.15
  4. Step 4: Simplify right side
    30,378,011.53x = 689,167,065,131,635.88
  5. Step 5: Solve for x
    x = 689,167,065,131,635.88/30,378,011.53
  6. Step 6: Final answer
    x = 22,686,378.42

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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.