Home / 2,157,521.45-2,978,499.02-1,576,091.70

Finding the Fourth Proportional to 2,157,521.45, 2,978,499.02 and 1,576,091.70

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Solution

The fourth proportional to 2,157,521.45, 2,978,499.02 and 1,576,091.70 is: 2,175,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,521.45 : 2,978,499.02 = 1,576,091.70 : x
  2. Step 2: Convert to fraction form
    2,157,521.45/2,978,499.02 = 1,576,091.70/x
  3. Step 3: Cross multiply
    2,157,521.45x = 2,978,499.02 × 1,576,091.70
  4. Step 4: Simplify right side
    2,157,521.45x = 4,694,387,575,999.68
  5. Step 5: Solve for x
    x = 4,694,387,575,999.68/2,157,521.45
  6. Step 6: Final answer
    x = 2,175,824.29

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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.