Home / 18,665,455.80-27,994,727.70-5,199,497.40

Finding the Fourth Proportional to 18,665,455.80, 27,994,727.70 and 5,199,497.40

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Solution

The fourth proportional to 18,665,455.80, 27,994,727.70 and 5,199,497.40 is: 7,798,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,455.80 : 27,994,727.70 = 5,199,497.40 : x
  2. Step 2: Convert to fraction form
    18,665,455.80/27,994,727.70 = 5,199,497.40/x
  3. Step 3: Cross multiply
    18,665,455.80x = 27,994,727.70 × 5,199,497.40
  4. Step 4: Simplify right side
    18,665,455.80x = 145,558,513,889,858
  5. Step 5: Solve for x
    x = 145,558,513,889,858/18,665,455.80
  6. Step 6: Final answer
    x = 7,798,283.39

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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.