Home / 4,910,989.30-7,363,957.96-2,638,428.39

Finding the Fourth Proportional to 4,910,989.30, 7,363,957.96 and 2,638,428.39

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Solution

The fourth proportional to 4,910,989.30, 7,363,957.96 and 2,638,428.39 is: 3,956,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910,989.30 : 7,363,957.96 = 2,638,428.39 : x
  2. Step 2: Convert to fraction form
    4,910,989.30/7,363,957.96 = 2,638,428.39/x
  3. Step 3: Cross multiply
    4,910,989.30x = 7,363,957.96 × 2,638,428.39
  4. Step 4: Simplify right side
    4,910,989.30x = 19,429,275,747,728.52
  5. Step 5: Solve for x
    x = 19,429,275,747,728.52/4,910,989.30
  6. Step 6: Final answer
    x = 3,956,285.50

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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.