Home / 13,121,047.98-18,104,803.29-7,613,160.30

Finding the Fourth Proportional to 13,121,047.98, 18,104,803.29 and 7,613,160.30

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Solution

The fourth proportional to 13,121,047.98, 18,104,803.29 and 7,613,160.30 is: 10,504,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,047.98 : 18,104,803.29 = 7,613,160.30 : x
  2. Step 2: Convert to fraction form
    13,121,047.98/18,104,803.29 = 7,613,160.30/x
  3. Step 3: Cross multiply
    13,121,047.98x = 18,104,803.29 × 7,613,160.30
  4. Step 4: Simplify right side
    13,121,047.98x = 137,834,769,646,737.38
  5. Step 5: Solve for x
    x = 137,834,769,646,737.38/13,121,047.98
  6. Step 6: Final answer
    x = 10,504,859.81

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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.