Home / 20,179,381,521.20-30,269,072,281.80-8,384,579,967.20

Finding the Fourth Proportional to 20,179,381,521.20, 30,269,072,281.80 and 8,384,579,967.20

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Solution

The fourth proportional to 20,179,381,521.20, 30,269,072,281.80 and 8,384,579,967.20 is: 12,576,869,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,381,521.20 : 30,269,072,281.80 = 8,384,579,967.20 : x
  2. Step 2: Convert to fraction form
    20,179,381,521.20/30,269,072,281.80 = 8,384,579,967.20/x
  3. Step 3: Cross multiply
    20,179,381,521.20x = 30,269,072,281.80 × 8,384,579,967.20
  4. Step 4: Simplify right side
    20,179,381,521.20x = 253,793,457,079,709,073,408
  5. Step 5: Solve for x
    x = 253,793,457,079,709,073,408/20,179,381,521.20
  6. Step 6: Final answer
    x = 12,576,869,950.80

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Double scale
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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.