Home / 12,387,890.20-18,581,835.30-3,289,970.20

Finding the Fourth Proportional to 12,387,890.20, 18,581,835.30 and 3,289,970.20

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Solution

The fourth proportional to 12,387,890.20, 18,581,835.30 and 3,289,970.20 is: 4,934,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,890.20 : 18,581,835.30 = 3,289,970.20 : x
  2. Step 2: Convert to fraction form
    12,387,890.20/18,581,835.30 = 3,289,970.20/x
  3. Step 3: Cross multiply
    12,387,890.20x = 18,581,835.30 × 3,289,970.20
  4. Step 4: Simplify right side
    12,387,890.20x = 61,133,684,398,308.06
  5. Step 5: Solve for x
    x = 61,133,684,398,308.06/12,387,890.20
  6. Step 6: Final answer
    x = 4,934,955.30

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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.