Home / 19,781,012.70-29,662,661.70-7,646,443.20

Finding the Fourth Proportional to 19,781,012.70, 29,662,661.70 and 7,646,443.20

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Solution

The fourth proportional to 19,781,012.70, 29,662,661.70 and 7,646,443.20 is: 11,466,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781,012.70 : 29,662,661.70 = 7,646,443.20 : x
  2. Step 2: Convert to fraction form
    19,781,012.70/29,662,661.70 = 7,646,443.20/x
  3. Step 3: Cross multiply
    19,781,012.70x = 29,662,661.70 × 7,646,443.20
  4. Step 4: Simplify right side
    19,781,012.70x = 226,813,857,849,865.44
  5. Step 5: Solve for x
    x = 226,813,857,849,865.44/19,781,012.70
  6. Step 6: Final answer
    x = 11,466,240.95

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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.