Home / 12,406,088.40-18,606,679.16-11,790,887.76

Finding the Fourth Proportional to 12,406,088.40, 18,606,679.16 and 11,790,887.76

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Solution

The fourth proportional to 12,406,088.40, 18,606,679.16 and 11,790,887.76 is: 17,683,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406,088.40 : 18,606,679.16 = 11,790,887.76 : x
  2. Step 2: Convert to fraction form
    12,406,088.40/18,606,679.16 = 11,790,887.76/x
  3. Step 3: Cross multiply
    12,406,088.40x = 18,606,679.16 × 11,790,887.76
  4. Step 4: Simplify right side
    12,406,088.40x = 219,389,265,561,891.09
  5. Step 5: Solve for x
    x = 219,389,265,561,891.09/12,406,088.40
  6. Step 6: Final answer
    x = 17,683,999.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.