Home / 18,759,709.80-25,867,841.62-12,221,214.03

Finding the Fourth Proportional to 18,759,709.80, 25,867,841.62 and 12,221,214.03

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Solution

The fourth proportional to 18,759,709.80, 25,867,841.62 and 12,221,214.03 is: 16,851,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759,709.80 : 25,867,841.62 = 12,221,214.03 : x
  2. Step 2: Convert to fraction form
    18,759,709.80/25,867,841.62 = 12,221,214.03/x
  3. Step 3: Cross multiply
    18,759,709.80x = 25,867,841.62 × 12,221,214.03
  4. Step 4: Simplify right side
    18,759,709.80x = 316,136,428,871,055.81
  5. Step 5: Solve for x
    x = 316,136,428,871,055.81/18,759,709.80
  6. Step 6: Final answer
    x = 16,851,882.69

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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.