Home / 13,684,476.09-18,884,627.05-7,405,003.47

Finding the Fourth Proportional to 13,684,476.09, 18,884,627.05 and 7,405,003.47

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Solution

The fourth proportional to 13,684,476.09, 18,884,627.05 and 7,405,003.47 is: 10,218,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684,476.09 : 18,884,627.05 = 7,405,003.47 : x
  2. Step 2: Convert to fraction form
    13,684,476.09/18,884,627.05 = 7,405,003.47/x
  3. Step 3: Cross multiply
    13,684,476.09x = 18,884,627.05 × 7,405,003.47
  4. Step 4: Simplify right side
    13,684,476.09x = 139,840,728,834,905.86
  5. Step 5: Solve for x
    x = 139,840,728,834,905.86/13,684,476.09
  6. Step 6: Final answer
    x = 10,218,931.87

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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.