Home / 13,757,918.35-20,638,870.41-5,121,300.91

Finding the Fourth Proportional to 13,757,918.35, 20,638,870.41 and 5,121,300.91

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Solution

The fourth proportional to 13,757,918.35, 20,638,870.41 and 5,121,300.91 is: 7,682,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757,918.35 : 20,638,870.41 = 5,121,300.91 : x
  2. Step 2: Convert to fraction form
    13,757,918.35/20,638,870.41 = 5,121,300.91/x
  3. Step 3: Cross multiply
    13,757,918.35x = 20,638,870.41 × 5,121,300.91
  4. Step 4: Simplify right side
    13,757,918.35x = 105,697,865,812,105.08
  5. Step 5: Solve for x
    x = 105,697,865,812,105.08/13,757,918.35
  6. Step 6: Final answer
    x = 7,682,693.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.