Home / 18,217,187.36-27,287,987.76-10,621,114.40

Finding the Fourth Proportional to 18,217,187.36, 27,287,987.76 and 10,621,114.40

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Solution

The fourth proportional to 18,217,187.36, 27,287,987.76 and 10,621,114.40 is: 15,909,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217,187.36 : 27,287,987.76 = 10,621,114.40 : x
  2. Step 2: Convert to fraction form
    18,217,187.36/27,287,987.76 = 10,621,114.40/x
  3. Step 3: Cross multiply
    18,217,187.36x = 27,287,987.76 × 10,621,114.40
  4. Step 4: Simplify right side
    18,217,187.36x = 289,828,839,744,759.75
  5. Step 5: Solve for x
    x = 289,828,839,744,759.75/18,217,187.36
  6. Step 6: Final answer
    x = 15,909,637.09

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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.