Home / 30,378,339.42-41,921,955.63-16,439,684.46

Finding the Fourth Proportional to 30,378,339.42, 41,921,955.63 and 16,439,684.46

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Solution

The fourth proportional to 30,378,339.42, 41,921,955.63 and 16,439,684.46 is: 22,686,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,339.42 : 41,921,955.63 = 16,439,684.46 : x
  2. Step 2: Convert to fraction form
    30,378,339.42/41,921,955.63 = 16,439,684.46/x
  3. Step 3: Cross multiply
    30,378,339.42x = 41,921,955.63 × 16,439,684.46
  4. Step 4: Simplify right side
    30,378,339.42x = 689,183,722,503,320.62
  5. Step 5: Solve for x
    x = 689,183,722,503,320.62/30,378,339.42
  6. Step 6: Final answer
    x = 22,686,681.88

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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.