Home / 21,789,029.70-32,683,544.55-7,428,312.90

Finding the Fourth Proportional to 21,789,029.70, 32,683,544.55 and 7,428,312.90

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Solution

The fourth proportional to 21,789,029.70, 32,683,544.55 and 7,428,312.90 is: 11,142,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,029.70 : 32,683,544.55 = 7,428,312.90 : x
  2. Step 2: Convert to fraction form
    21,789,029.70/32,683,544.55 = 7,428,312.90/x
  3. Step 3: Cross multiply
    21,789,029.70x = 32,683,544.55 × 7,428,312.90
  4. Step 4: Simplify right side
    21,789,029.70x = 242,783,595,598,489.72
  5. Step 5: Solve for x
    x = 242,783,595,598,489.72/21,789,029.70
  6. Step 6: Final answer
    x = 11,142,469.35

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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.