Home / 66,429,883.20-99,686,815.20-39,136,123.20

Finding the Fourth Proportional to 66,429,883.20, 99,686,815.20 and 39,136,123.20

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Solution

The fourth proportional to 66,429,883.20, 99,686,815.20 and 39,136,123.20 is: 58,728,922.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,883.20 : 99,686,815.20 = 39,136,123.20 : x
  2. Step 2: Convert to fraction form
    66,429,883.20/99,686,815.20 = 39,136,123.20/x
  3. Step 3: Cross multiply
    66,429,883.20x = 99,686,815.20 × 39,136,123.20
  4. Step 4: Simplify right side
    66,429,883.20x = 3,901,355,481,082,833
  5. Step 5: Solve for x
    x = 3,901,355,481,082,833/66,429,883.20
  6. Step 6: Final answer
    x = 58,728,922.79

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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.