Home / 12,220,769.28-18,336,337.92-6,539,520

Finding the Fourth Proportional to 12,220,769.28, 18,336,337.92 and 6,539,520

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Solution

The fourth proportional to 12,220,769.28, 18,336,337.92 and 6,539,520 is: 9,812,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220,769.28 : 18,336,337.92 = 6,539,520 : x
  2. Step 2: Convert to fraction form
    12,220,769.28/18,336,337.92 = 6,539,520/x
  3. Step 3: Cross multiply
    12,220,769.28x = 18,336,337.92 × 6,539,520
  4. Step 4: Simplify right side
    12,220,769.28x = 119,910,848,554,598.41
  5. Step 5: Solve for x
    x = 119,910,848,554,598.41/12,220,769.28
  6. Step 6: Final answer
    x = 9,812,054.04

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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.