Home / 66,672,021.80-100,013,562.30-21,232,533.80

Finding the Fourth Proportional to 66,672,021.80, 100,013,562.30 and 21,232,533.80

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Solution

The fourth proportional to 66,672,021.80, 100,013,562.30 and 21,232,533.80 is: 31,850,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672,021.80 : 100,013,562.30 = 21,232,533.80 : x
  2. Step 2: Convert to fraction form
    66,672,021.80/100,013,562.30 = 21,232,533.80/x
  3. Step 3: Cross multiply
    66,672,021.80x = 100,013,562.30 × 21,232,533.80
  4. Step 4: Simplify right side
    66,672,021.80x = 2,123,541,341,993,155.75
  5. Step 5: Solve for x
    x = 2,123,541,341,993,155.75/66,672,021.80
  6. Step 6: Final answer
    x = 31,850,561.67

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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.