Home / 19,928,121.70-29,899,180.95-8,572,051.30

Finding the Fourth Proportional to 19,928,121.70, 29,899,180.95 and 8,572,051.30

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Solution

The fourth proportional to 19,928,121.70, 29,899,180.95 and 8,572,051.30 is: 12,861,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,121.70 : 29,899,180.95 = 8,572,051.30 : x
  2. Step 2: Convert to fraction form
    19,928,121.70/29,899,180.95 = 8,572,051.30/x
  3. Step 3: Cross multiply
    19,928,121.70x = 29,899,180.95 × 8,572,051.30
  4. Step 4: Simplify right side
    19,928,121.70x = 256,297,312,931,382.75
  5. Step 5: Solve for x
    x = 256,297,312,931,382.75/19,928,121.70
  6. Step 6: Final answer
    x = 12,861,087.30

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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.