Home / 187,071,052.20-280,457,279.10-79,277,029.80

Finding the Fourth Proportional to 187,071,052.20, 280,457,279.10 and 79,277,029.80

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Solution

The fourth proportional to 187,071,052.20, 280,457,279.10 and 79,277,029.80 is: 118,852,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071,052.20 : 280,457,279.10 = 79,277,029.80 : x
  2. Step 2: Convert to fraction form
    187,071,052.20/280,457,279.10 = 79,277,029.80/x
  3. Step 3: Cross multiply
    187,071,052.20x = 280,457,279.10 × 79,277,029.80
  4. Step 4: Simplify right side
    187,071,052.20x = 22,233,820,072,837,620
  5. Step 5: Solve for x
    x = 22,233,820,072,837,620/187,071,052.20
  6. Step 6: Final answer
    x = 118,852,274.64

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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.