Home / 43,019,872.20-64,529,808.30-39,618,649.80

Finding the Fourth Proportional to 43,019,872.20, 64,529,808.30 and 39,618,649.80

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Solution

The fourth proportional to 43,019,872.20, 64,529,808.30 and 39,618,649.80 is: 59,427,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,019,872.20 : 64,529,808.30 = 39,618,649.80 : x
  2. Step 2: Convert to fraction form
    43,019,872.20/64,529,808.30 = 39,618,649.80/x
  3. Step 3: Cross multiply
    43,019,872.20x = 64,529,808.30 × 39,618,649.80
  4. Step 4: Simplify right side
    43,019,872.20x = 2,556,583,876,698,833
  5. Step 5: Solve for x
    x = 2,556,583,876,698,833/43,019,872.20
  6. Step 6: Final answer
    x = 59,427,974.70

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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.