Home / 20,689,544.20-30,981,172.20-16,402,586.80

Finding the Fourth Proportional to 20,689,544.20, 30,981,172.20 and 16,402,586.80

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Solution

The fourth proportional to 20,689,544.20, 30,981,172.20 and 16,402,586.80 is: 24,561,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,544.20 : 30,981,172.20 = 16,402,586.80 : x
  2. Step 2: Convert to fraction form
    20,689,544.20/30,981,172.20 = 16,402,586.80/x
  3. Step 3: Cross multiply
    20,689,544.20x = 30,981,172.20 × 16,402,586.80
  4. Step 4: Simplify right side
    20,689,544.20x = 508,171,366,176,247
  5. Step 5: Solve for x
    x = 508,171,366,176,247/20,689,544.20
  6. Step 6: Final answer
    x = 24,561,747.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.