Home / 12,805,423.90-19,206,721.16-3,220,806.22

Finding the Fourth Proportional to 12,805,423.90, 19,206,721.16 and 3,220,806.22

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Solution

The fourth proportional to 12,805,423.90, 19,206,721.16 and 3,220,806.22 is: 4,830,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,423.90 : 19,206,721.16 = 3,220,806.22 : x
  2. Step 2: Convert to fraction form
    12,805,423.90/19,206,721.16 = 3,220,806.22/x
  3. Step 3: Cross multiply
    12,805,423.90x = 19,206,721.16 × 3,220,806.22
  4. Step 4: Simplify right side
    12,805,423.90x = 61,861,126,865,795.98
  5. Step 5: Solve for x
    x = 61,861,126,865,795.98/12,805,423.90
  6. Step 6: Final answer
    x = 4,830,853.50

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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.