Home / 12,121,428.29-16,727,926.34-6,615,157.18

Finding the Fourth Proportional to 12,121,428.29, 16,727,926.34 and 6,615,157.18

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Solution

The fourth proportional to 12,121,428.29, 16,727,926.34 and 6,615,157.18 is: 9,129,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,428.29 : 16,727,926.34 = 6,615,157.18 : x
  2. Step 2: Convert to fraction form
    12,121,428.29/16,727,926.34 = 6,615,157.18/x
  3. Step 3: Cross multiply
    12,121,428.29x = 16,727,926.34 × 6,615,157.18
  4. Step 4: Simplify right side
    12,121,428.29x = 110,657,862,034,562.11
  5. Step 5: Solve for x
    x = 110,657,862,034,562.11/12,121,428.29
  6. Step 6: Final answer
    x = 9,129,110.81

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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.