Home / 19,008,000.30-28,512,000.45-18,448,128.30

Finding the Fourth Proportional to 19,008,000.30, 28,512,000.45 and 18,448,128.30

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Solution

The fourth proportional to 19,008,000.30, 28,512,000.45 and 18,448,128.30 is: 27,672,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,000.30 : 28,512,000.45 = 18,448,128.30 : x
  2. Step 2: Convert to fraction form
    19,008,000.30/28,512,000.45 = 18,448,128.30/x
  3. Step 3: Cross multiply
    19,008,000.30x = 28,512,000.45 × 18,448,128.30
  4. Step 4: Simplify right side
    19,008,000.30x = 525,993,042,391,257.75
  5. Step 5: Solve for x
    x = 525,993,042,391,257.75/19,008,000.30
  6. Step 6: Final answer
    x = 27,672,192.45

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1.5x scale

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.