Home / 20,997,206.70-31,492,819.50-6,618,405.84

Finding the Fourth Proportional to 20,997,206.70, 31,492,819.50 and 6,618,405.84

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Solution

The fourth proportional to 20,997,206.70, 31,492,819.50 and 6,618,405.84 is: 9,926,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,206.70 : 31,492,819.50 = 6,618,405.84 : x
  2. Step 2: Convert to fraction form
    20,997,206.70/31,492,819.50 = 6,618,405.84/x
  3. Step 3: Cross multiply
    20,997,206.70x = 31,492,819.50 × 6,618,405.84
  4. Step 4: Simplify right side
    20,997,206.70x = 208,432,260,496,865.88
  5. Step 5: Solve for x
    x = 208,432,260,496,865.88/20,997,206.70
  6. Step 6: Final answer
    x = 9,926,666.13

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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.