Home / 15,167,975.51-20,931,901.10-8,198,638.69

Finding the Fourth Proportional to 15,167,975.51, 20,931,901.10 and 8,198,638.69

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Solution

The fourth proportional to 15,167,975.51, 20,931,901.10 and 8,198,638.69 is: 11,314,172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,975.51 : 20,931,901.10 = 8,198,638.69 : x
  2. Step 2: Convert to fraction form
    15,167,975.51/20,931,901.10 = 8,198,638.69/x
  3. Step 3: Cross multiply
    15,167,975.51x = 20,931,901.10 × 8,198,638.69
  4. Step 4: Simplify right side
    15,167,975.51x = 171,613,094,213,713.59
  5. Step 5: Solve for x
    x = 171,613,094,213,713.59/15,167,975.51
  6. Step 6: Final answer
    x = 11,314,172.69

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1.5x scale

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.