Home / 12,357,415.20-18,548,564.40-5,972,800.80

Finding the Fourth Proportional to 12,357,415.20, 18,548,564.40 and 5,972,800.80

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Solution

The fourth proportional to 12,357,415.20, 18,548,564.40 and 5,972,800.80 is: 8,965,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,415.20 : 18,548,564.40 = 5,972,800.80 : x
  2. Step 2: Convert to fraction form
    12,357,415.20/18,548,564.40 = 5,972,800.80/x
  3. Step 3: Cross multiply
    12,357,415.20x = 18,548,564.40 × 5,972,800.80
  4. Step 4: Simplify right side
    12,357,415.20x = 110,786,880,287,171.50
  5. Step 5: Solve for x
    x = 110,786,880,287,171.50/12,357,415.20
  6. Step 6: Final answer
    x = 8,965,214.69

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1.5x scale

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.