Home / 13,456,424.70-18,569,865.60-7,344,853.20

Finding the Fourth Proportional to 13,456,424.70, 18,569,865.60 and 7,344,853.20

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Solution

The fourth proportional to 13,456,424.70, 18,569,865.60 and 7,344,853.20 is: 10,135,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456,424.70 : 18,569,865.60 = 7,344,853.20 : x
  2. Step 2: Convert to fraction form
    13,456,424.70/18,569,865.60 = 7,344,853.20/x
  3. Step 3: Cross multiply
    13,456,424.70x = 18,569,865.60 × 7,344,853.20
  4. Step 4: Simplify right side
    13,456,424.70x = 136,392,936,775,729.94
  5. Step 5: Solve for x
    x = 136,392,936,775,729.94/13,456,424.70
  6. Step 6: Final answer
    x = 10,135,897.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.