Home / 13,637,489.72-18,820,176.18-7,756,972.80

Finding the Fourth Proportional to 13,637,489.72, 18,820,176.18 and 7,756,972.80

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Solution

The fourth proportional to 13,637,489.72, 18,820,176.18 and 7,756,972.80 is: 10,704,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,489.72 : 18,820,176.18 = 7,756,972.80 : x
  2. Step 2: Convert to fraction form
    13,637,489.72/18,820,176.18 = 7,756,972.80/x
  3. Step 3: Cross multiply
    13,637,489.72x = 18,820,176.18 × 7,756,972.80
  4. Step 4: Simplify right side
    13,637,489.72x = 145,987,594,641,623.94
  5. Step 5: Solve for x
    x = 145,987,594,641,623.94/13,637,489.72
  6. Step 6: Final answer
    x = 10,704,872.94

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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.