Home / 187,206,377-280,579,575.72-105,152,772.80

Finding the Fourth Proportional to 187,206,377, 280,579,575.72 and 105,152,772.80

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Solution

The fourth proportional to 187,206,377, 280,579,575.72 and 105,152,772.80 is: 157,599,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,206,377 : 280,579,575.72 = 105,152,772.80 : x
  2. Step 2: Convert to fraction form
    187,206,377/280,579,575.72 = 105,152,772.80/x
  3. Step 3: Cross multiply
    187,206,377x = 280,579,575.72 × 105,152,772.80
  4. Step 4: Simplify right side
    187,206,377x = 29,503,720,378,005,560
  5. Step 5: Solve for x
    x = 29,503,720,378,005,560/187,206,377
  6. Step 6: Final answer
    x = 157,599,975.23

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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.