Home / 30,378,337.92-41,921,953.56-16,439,682.96

Finding the Fourth Proportional to 30,378,337.92, 41,921,953.56 and 16,439,682.96

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Solution

The fourth proportional to 30,378,337.92, 41,921,953.56 and 16,439,682.96 is: 22,686,679.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,337.92 : 41,921,953.56 = 16,439,682.96 : x
  2. Step 2: Convert to fraction form
    30,378,337.92/41,921,953.56 = 16,439,682.96/x
  3. Step 3: Cross multiply
    30,378,337.92x = 41,921,953.56 × 16,439,682.96
  4. Step 4: Simplify right side
    30,378,337.92x = 689,183,625,590,243.38
  5. Step 5: Solve for x
    x = 689,183,625,590,243.38/30,378,337.92
  6. Step 6: Final answer
    x = 22,686,679.81

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1.5x scale

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.