Home / 13,315,656.69-18,388,297.19-12,590,229.33

Finding the Fourth Proportional to 13,315,656.69, 18,388,297.19 and 12,590,229.33

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Solution

The fourth proportional to 13,315,656.69, 18,388,297.19 and 12,590,229.33 is: 17,386,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,656.69 : 18,388,297.19 = 12,590,229.33 : x
  2. Step 2: Convert to fraction form
    13,315,656.69/18,388,297.19 = 12,590,229.33/x
  3. Step 3: Cross multiply
    13,315,656.69x = 18,388,297.19 × 12,590,229.33
  4. Step 4: Simplify right side
    13,315,656.69x = 231,512,878,547,343.41
  5. Step 5: Solve for x
    x = 231,512,878,547,343.41/13,315,656.69
  6. Step 6: Final answer
    x = 17,386,516.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.