Home / 12,645,628.08-18,970,417.71-4,123,982.58

Finding the Fourth Proportional to 12,645,628.08, 18,970,417.71 and 4,123,982.58

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Solution

The fourth proportional to 12,645,628.08, 18,970,417.71 and 4,123,982.58 is: 6,186,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645,628.08 : 18,970,417.71 = 4,123,982.58 : x
  2. Step 2: Convert to fraction form
    12,645,628.08/18,970,417.71 = 4,123,982.58/x
  3. Step 3: Cross multiply
    12,645,628.08x = 18,970,417.71 × 4,123,982.58
  4. Step 4: Simplify right side
    12,645,628.08x = 78,233,672,171,363.50
  5. Step 5: Solve for x
    x = 78,233,672,171,363.50/12,645,628.08
  6. Step 6: Final answer
    x = 6,186,618.15

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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.