Home / 13,391,464.86-18,479,039.48-7,431,021.13

Finding the Fourth Proportional to 13,391,464.86, 18,479,039.48 and 7,431,021.13

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Solution

The fourth proportional to 13,391,464.86, 18,479,039.48 and 7,431,021.13 is: 10,254,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391,464.86 : 18,479,039.48 = 7,431,021.13 : x
  2. Step 2: Convert to fraction form
    13,391,464.86/18,479,039.48 = 7,431,021.13/x
  3. Step 3: Cross multiply
    13,391,464.86x = 18,479,039.48 × 7,431,021.13
  4. Step 4: Simplify right side
    13,391,464.86x = 137,318,132,800,829.11
  5. Step 5: Solve for x
    x = 137,318,132,800,829.11/13,391,464.86
  6. Step 6: Final answer
    x = 10,254,153.25

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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.