Home / 3,900,130.31-5,845,404.02-2,190,680.21

Finding the Fourth Proportional to 3,900,130.31, 5,845,404.02 and 2,190,680.21

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Solution

The fourth proportional to 3,900,130.31, 5,845,404.02 and 2,190,680.21 is: 3,283,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,130.31 : 5,845,404.02 = 2,190,680.21 : x
  2. Step 2: Convert to fraction form
    3,900,130.31/5,845,404.02 = 2,190,680.21/x
  3. Step 3: Cross multiply
    3,900,130.31x = 5,845,404.02 × 2,190,680.21
  4. Step 4: Simplify right side
    3,900,130.31x = 12,805,410,909,728.55
  5. Step 5: Solve for x
    x = 12,805,410,909,728.55/3,900,130.31
  6. Step 6: Final answer
    x = 3,283,328.99

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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.