Home / 30,378,012.40-41,921,762.96-16,439,364.01

Finding the Fourth Proportional to 30,378,012.40, 41,921,762.96 and 16,439,364.01

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Solution

The fourth proportional to 30,378,012.40, 41,921,762.96 and 16,439,364.01 is: 22,686,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,012.40 : 41,921,762.96 = 16,439,364.01 : x
  2. Step 2: Convert to fraction form
    30,378,012.40/41,921,762.96 = 16,439,364.01/x
  3. Step 3: Cross multiply
    30,378,012.40x = 41,921,762.96 × 16,439,364.01
  4. Step 4: Simplify right side
    30,378,012.40x = 689,167,121,240,375.12
  5. Step 5: Solve for x
    x = 689,167,121,240,375.12/30,378,012.40
  6. Step 6: Final answer
    x = 22,686,379.61

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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.