Home / 19,191,520.70-28,803,027.45-18,561,664.70

Finding the Fourth Proportional to 19,191,520.70, 28,803,027.45 and 18,561,664.70

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Solution

The fourth proportional to 19,191,520.70, 28,803,027.45 and 18,561,664.70 is: 27,857,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,520.70 : 28,803,027.45 = 18,561,664.70 : x
  2. Step 2: Convert to fraction form
    19,191,520.70/28,803,027.45 = 18,561,664.70/x
  3. Step 3: Cross multiply
    19,191,520.70x = 28,803,027.45 × 18,561,664.70
  4. Step 4: Simplify right side
    19,191,520.70x = 534,632,137,871,796
  5. Step 5: Solve for x
    x = 534,632,137,871,796/19,191,520.70
  6. Step 6: Final answer
    x = 27,857,726.66

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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.