Home / 19,520,078.12-29,105,602.68-18,983,780.80

Finding the Fourth Proportional to 19,520,078.12, 29,105,602.68 and 18,983,780.80

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Solution

The fourth proportional to 19,520,078.12, 29,105,602.68 and 18,983,780.80 is: 28,305,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520,078.12 : 29,105,602.68 = 18,983,780.80 : x
  2. Step 2: Convert to fraction form
    19,520,078.12/29,105,602.68 = 18,983,780.80/x
  3. Step 3: Cross multiply
    19,520,078.12x = 29,105,602.68 × 18,983,780.80
  4. Step 4: Simplify right side
    19,520,078.12x = 552,534,381,329,012.56
  5. Step 5: Solve for x
    x = 552,534,381,329,012.56/19,520,078.12
  6. Step 6: Final answer
    x = 28,305,951.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.