Home / 13,684,480.85-18,884,633.61-7,405,008.23

Finding the Fourth Proportional to 13,684,480.85, 18,884,633.61 and 7,405,008.23

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Solution

The fourth proportional to 13,684,480.85, 18,884,633.61 and 7,405,008.23 is: 10,218,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684,480.85 : 18,884,633.61 = 7,405,008.23 : x
  2. Step 2: Convert to fraction form
    13,684,480.85/18,884,633.61 = 7,405,008.23/x
  3. Step 3: Cross multiply
    13,684,480.85x = 18,884,633.61 × 7,405,008.23
  4. Step 4: Simplify right side
    13,684,480.85x = 139,840,867,208,161.44
  5. Step 5: Solve for x
    x = 139,840,867,208,161.44/13,684,480.85
  6. Step 6: Final answer
    x = 10,218,938.43

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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.