Home / 12,459,468.60-18,685,703.70-3,942,415.80

Finding the Fourth Proportional to 12,459,468.60, 18,685,703.70 and 3,942,415.80

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Solution

The fourth proportional to 12,459,468.60, 18,685,703.70 and 3,942,415.80 is: 5,912,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,468.60 : 18,685,703.70 = 3,942,415.80 : x
  2. Step 2: Convert to fraction form
    12,459,468.60/18,685,703.70 = 3,942,415.80/x
  3. Step 3: Cross multiply
    12,459,468.60x = 18,685,703.70 × 3,942,415.80
  4. Step 4: Simplify right side
    12,459,468.60x = 73,666,813,500,998.45
  5. Step 5: Solve for x
    x = 73,666,813,500,998.45/12,459,468.60
  6. Step 6: Final answer
    x = 5,912,516.49

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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.