Home / 18,489,229.65-27,731,744.96-7,128,726.93

Finding the Fourth Proportional to 18,489,229.65, 27,731,744.96 and 7,128,726.93

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Solution

The fourth proportional to 18,489,229.65, 27,731,744.96 and 7,128,726.93 is: 10,692,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489,229.65 : 27,731,744.96 = 7,128,726.93 : x
  2. Step 2: Convert to fraction form
    18,489,229.65/27,731,744.96 = 7,128,726.93/x
  3. Step 3: Cross multiply
    18,489,229.65x = 27,731,744.96 × 7,128,726.93
  4. Step 4: Simplify right side
    18,489,229.65x = 197,692,037,076,600.12
  5. Step 5: Solve for x
    x = 197,692,037,076,600.12/18,489,229.65
  6. Step 6: Final answer
    x = 10,692,280.90

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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.