Home / 12,805,423.40-19,206,720.41-3,220,805.72

Finding the Fourth Proportional to 12,805,423.40, 19,206,720.41 and 3,220,805.72

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Solution

The fourth proportional to 12,805,423.40, 19,206,720.41 and 3,220,805.72 is: 4,830,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,423.40 : 19,206,720.41 = 3,220,805.72 : x
  2. Step 2: Convert to fraction form
    12,805,423.40/19,206,720.41 = 3,220,805.72/x
  3. Step 3: Cross multiply
    12,805,423.40x = 19,206,720.41 × 3,220,805.72
  4. Step 4: Simplify right side
    12,805,423.40x = 61,861,114,846,831.12
  5. Step 5: Solve for x
    x = 61,861,114,846,831.12/12,805,423.40
  6. Step 6: Final answer
    x = 4,830,852.75

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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.