Home / 20,118,934.20-30,178,401.30-16,009,123.80

Finding the Fourth Proportional to 20,118,934.20, 30,178,401.30 and 16,009,123.80

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Solution

The fourth proportional to 20,118,934.20, 30,178,401.30 and 16,009,123.80 is: 24,013,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,934.20 : 30,178,401.30 = 16,009,123.80 : x
  2. Step 2: Convert to fraction form
    20,118,934.20/30,178,401.30 = 16,009,123.80/x
  3. Step 3: Cross multiply
    20,118,934.20x = 30,178,401.30 × 16,009,123.80
  4. Step 4: Simplify right side
    20,118,934.20x = 483,129,762,497,781
  5. Step 5: Solve for x
    x = 483,129,762,497,781/20,118,934.20
  6. Step 6: Final answer
    x = 24,013,685.70

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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.