Home / 3,643,172.29-5,027,602.07-1,989,330.89

Finding the Fourth Proportional to 3,643,172.29, 5,027,602.07 and 1,989,330.89

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Solution

The fourth proportional to 3,643,172.29, 5,027,602.07 and 1,989,330.89 is: 2,745,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643,172.29 : 5,027,602.07 = 1,989,330.89 : x
  2. Step 2: Convert to fraction form
    3,643,172.29/5,027,602.07 = 1,989,330.89/x
  3. Step 3: Cross multiply
    3,643,172.29x = 5,027,602.07 × 1,989,330.89
  4. Step 4: Simplify right side
    3,643,172.29x = 10,001,564,100,478.94
  5. Step 5: Solve for x
    x = 10,001,564,100,478.94/3,643,172.29
  6. Step 6: Final answer
    x = 2,745,289.90

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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.