Home / 13,021,981.86-17,969,040.18-7,517,130.18

Finding the Fourth Proportional to 13,021,981.86, 17,969,040.18 and 7,517,130.18

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Solution

The fourth proportional to 13,021,981.86, 17,969,040.18 and 7,517,130.18 is: 10,372,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,981.86 : 17,969,040.18 = 7,517,130.18 : x
  2. Step 2: Convert to fraction form
    13,021,981.86/17,969,040.18 = 7,517,130.18/x
  3. Step 3: Cross multiply
    13,021,981.86x = 17,969,040.18 × 7,517,130.18
  4. Step 4: Simplify right side
    13,021,981.86x = 135,075,614,242,710.62
  5. Step 5: Solve for x
    x = 135,075,614,242,710.62/13,021,981.86
  6. Step 6: Final answer
    x = 10,372,892.21

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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.