Home / 66,571,050.40-99,862,105.20-21,131,562.40

Finding the Fourth Proportional to 66,571,050.40, 99,862,105.20 and 21,131,562.40

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Solution

The fourth proportional to 66,571,050.40, 99,862,105.20 and 21,131,562.40 is: 31,699,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,571,050.40 : 99,862,105.20 = 21,131,562.40 : x
  2. Step 2: Convert to fraction form
    66,571,050.40/99,862,105.20 = 21,131,562.40/x
  3. Step 3: Cross multiply
    66,571,050.40x = 99,862,105.20 × 21,131,562.40
  4. Step 4: Simplify right side
    66,571,050.40x = 2,110,242,307,429,164.50
  5. Step 5: Solve for x
    x = 2,110,242,307,429,164.50/66,571,050.40
  6. Step 6: Final answer
    x = 31,699,098.85

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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.