Home / 3,939,784.49-5,436,985.64-2,220,905.00

Finding the Fourth Proportional to 3,939,784.49, 5,436,985.64 and 2,220,905.00

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Solution

The fourth proportional to 3,939,784.49, 5,436,985.64 and 2,220,905.00 is: 3,064,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,784.49 : 5,436,985.64 = 2,220,905.00 : x
  2. Step 2: Convert to fraction form
    3,939,784.49/5,436,985.64 = 2,220,905.00/x
  3. Step 3: Cross multiply
    3,939,784.49x = 5,436,985.64 × 2,220,905.00
  4. Step 4: Simplify right side
    3,939,784.49x = 12,075,028,595,292.14
  5. Step 5: Solve for x
    x = 12,075,028,595,292.14/3,939,784.49
  6. Step 6: Final answer
    x = 3,064,895.71

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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.