Home / 12,343,872-17,034,719.22-7,116,776.76

Finding the Fourth Proportional to 12,343,872, 17,034,719.22 and 7,116,776.76

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Solution

The fourth proportional to 12,343,872, 17,034,719.22 and 7,116,776.76 is: 9,821,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343,872 : 17,034,719.22 = 7,116,776.76 : x
  2. Step 2: Convert to fraction form
    12,343,872/17,034,719.22 = 7,116,776.76/x
  3. Step 3: Cross multiply
    12,343,872x = 17,034,719.22 × 7,116,776.76
  4. Step 4: Simplify right side
    12,343,872x = 121,232,293,858,021.31
  5. Step 5: Solve for x
    x = 121,232,293,858,021.31/12,343,872
  6. Step 6: Final answer
    x = 9,821,253.32

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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.