Home / 19,928,120.70-29,899,179.45-8,572,050.30

Finding the Fourth Proportional to 19,928,120.70, 29,899,179.45 and 8,572,050.30

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Solution

The fourth proportional to 19,928,120.70, 29,899,179.45 and 8,572,050.30 is: 12,861,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,120.70 : 29,899,179.45 = 8,572,050.30 : x
  2. Step 2: Convert to fraction form
    19,928,120.70/29,899,179.45 = 8,572,050.30/x
  3. Step 3: Cross multiply
    19,928,120.70x = 29,899,179.45 × 8,572,050.30
  4. Step 4: Simplify right side
    19,928,120.70x = 256,297,270,174,126.34
  5. Step 5: Solve for x
    x = 256,297,270,174,126.34/19,928,120.70
  6. Step 6: Final answer
    x = 12,861,085.80

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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.