Home / 13,108,381.58-18,090,551.68-7,601,708.64

Finding the Fourth Proportional to 13,108,381.58, 18,090,551.68 and 7,601,708.64

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Solution

The fourth proportional to 13,108,381.58, 18,090,551.68 and 7,601,708.64 is: 10,490,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108,381.58 : 18,090,551.68 = 7,601,708.64 : x
  2. Step 2: Convert to fraction form
    13,108,381.58/18,090,551.68 = 7,601,708.64/x
  3. Step 3: Cross multiply
    13,108,381.58x = 18,090,551.68 × 7,601,708.64
  4. Step 4: Simplify right side
    13,108,381.58x = 137,519,103,008,222.50
  5. Step 5: Solve for x
    x = 137,519,103,008,222.50/13,108,381.58
  6. Step 6: Final answer
    x = 10,490,929.19

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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.