Home / 18,665,097.80-27,994,190.70-5,199,139.40

Finding the Fourth Proportional to 18,665,097.80, 27,994,190.70 and 5,199,139.40

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Solution

The fourth proportional to 18,665,097.80, 27,994,190.70 and 5,199,139.40 is: 7,797,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,097.80 : 27,994,190.70 = 5,199,139.40 : x
  2. Step 2: Convert to fraction form
    18,665,097.80/27,994,190.70 = 5,199,139.40/x
  3. Step 3: Cross multiply
    18,665,097.80x = 27,994,190.70 × 5,199,139.40
  4. Step 4: Simplify right side
    18,665,097.80x = 145,545,699,839,483.59
  5. Step 5: Solve for x
    x = 145,545,699,839,483.59/18,665,097.80
  6. Step 6: Final answer
    x = 7,797,746.44

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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.