Home / 13,631,824.89-18,811,971.15-7,437,010.68

Finding the Fourth Proportional to 13,631,824.89, 18,811,971.15 and 7,437,010.68

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Solution

The fourth proportional to 13,631,824.89, 18,811,971.15 and 7,437,010.68 is: 10,263,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,824.89 : 18,811,971.15 = 7,437,010.68 : x
  2. Step 2: Convert to fraction form
    13,631,824.89/18,811,971.15 = 7,437,010.68/x
  3. Step 3: Cross multiply
    13,631,824.89x = 18,811,971.15 × 7,437,010.68
  4. Step 4: Simplify right side
    13,631,824.89x = 139,904,830,354,401.86
  5. Step 5: Solve for x
    x = 139,904,830,354,401.86/13,631,824.89
  6. Step 6: Final answer
    x = 10,263,103.55

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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.