Home / 12,687,652.63-17,508,740.91-6,886,309.78

Finding the Fourth Proportional to 12,687,652.63, 17,508,740.91 and 6,886,309.78

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Solution

The fourth proportional to 12,687,652.63, 17,508,740.91 and 6,886,309.78 is: 9,502,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,652.63 : 17,508,740.91 = 6,886,309.78 : x
  2. Step 2: Convert to fraction form
    12,687,652.63/17,508,740.91 = 6,886,309.78/x
  3. Step 3: Cross multiply
    12,687,652.63x = 17,508,740.91 × 6,886,309.78
  4. Step 4: Simplify right side
    12,687,652.63x = 120,570,613,764,019.11
  5. Step 5: Solve for x
    x = 120,570,613,764,019.11/12,687,652.63
  6. Step 6: Final answer
    x = 9,502,988.24

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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.