Home / 13,610,011.50-18,781,759.98-7,415,040.78

Finding the Fourth Proportional to 13,610,011.50, 18,781,759.98 and 7,415,040.78

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Solution

The fourth proportional to 13,610,011.50, 18,781,759.98 and 7,415,040.78 is: 10,232,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610,011.50 : 18,781,759.98 = 7,415,040.78 : x
  2. Step 2: Convert to fraction form
    13,610,011.50/18,781,759.98 = 7,415,040.78/x
  3. Step 3: Cross multiply
    13,610,011.50x = 18,781,759.98 × 7,415,040.78
  4. Step 4: Simplify right side
    13,610,011.50x = 139,267,516,171,872
  5. Step 5: Solve for x
    x = 139,267,516,171,872/13,610,011.50
  6. Step 6: Final answer
    x = 10,232,725.83

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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.