Home / 21,388,045.60-32,082,068.40-7,930,122.40

Finding the Fourth Proportional to 21,388,045.60, 32,082,068.40 and 7,930,122.40

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Solution

The fourth proportional to 21,388,045.60, 32,082,068.40 and 7,930,122.40 is: 11,895,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388,045.60 : 32,082,068.40 = 7,930,122.40 : x
  2. Step 2: Convert to fraction form
    21,388,045.60/32,082,068.40 = 7,930,122.40/x
  3. Step 3: Cross multiply
    21,388,045.60x = 32,082,068.40 × 7,930,122.40
  4. Step 4: Simplify right side
    21,388,045.60x = 254,414,729,257,172.16
  5. Step 5: Solve for x
    x = 254,414,729,257,172.16/21,388,045.60
  6. Step 6: Final answer
    x = 11,895,183.60

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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.