Home / 3,938,943.36-5,435,583.72-2,220,419.76

Finding the Fourth Proportional to 3,938,943.36, 5,435,583.72 and 2,220,419.76

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Solution

The fourth proportional to 3,938,943.36, 5,435,583.72 and 2,220,419.76 is: 3,064,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,943.36 : 5,435,583.72 = 2,220,419.76 : x
  2. Step 2: Convert to fraction form
    3,938,943.36/5,435,583.72 = 2,220,419.76/x
  3. Step 3: Cross multiply
    3,938,943.36x = 5,435,583.72 × 2,220,419.76
  4. Step 4: Simplify right side
    3,938,943.36x = 12,069,277,499,022.30
  5. Step 5: Solve for x
    x = 12,069,277,499,022.30/3,938,943.36
  6. Step 6: Final answer
    x = 3,064,090.14

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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.