Home / 13,637,908.12-18,820,752.32-7,757,391.49

Finding the Fourth Proportional to 13,637,908.12, 18,820,752.32 and 7,757,391.49

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Solution

The fourth proportional to 13,637,908.12, 18,820,752.32 and 7,757,391.49 is: 10,705,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,908.12 : 18,820,752.32 = 7,757,391.49 : x
  2. Step 2: Convert to fraction form
    13,637,908.12/18,820,752.32 = 7,757,391.49/x
  3. Step 3: Cross multiply
    13,637,908.12x = 18,820,752.32 × 7,757,391.49
  4. Step 4: Simplify right side
    13,637,908.12x = 145,999,943,835,513.88
  5. Step 5: Solve for x
    x = 145,999,943,835,513.88/13,637,908.12
  6. Step 6: Final answer
    x = 10,705,450.03

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1.5x scale

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.