Home / 31,401,075.70-43,327,131.84-18,345,813.22

Finding the Fourth Proportional to 31,401,075.70, 43,327,131.84 and 18,345,813.22

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Solution

The fourth proportional to 31,401,075.70, 43,327,131.84 and 18,345,813.22 is: 25,313,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401,075.70 : 43,327,131.84 = 18,345,813.22 : x
  2. Step 2: Convert to fraction form
    31,401,075.70/43,327,131.84 = 18,345,813.22/x
  3. Step 3: Cross multiply
    31,401,075.70x = 43,327,131.84 × 18,345,813.22
  4. Step 4: Simplify right side
    31,401,075.70x = 794,871,468,094,955
  5. Step 5: Solve for x
    x = 794,871,468,094,955/31,401,075.70
  6. Step 6: Final answer
    x = 25,313,510.78

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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.