Home / 12,308,288.40-18,465,845.40-5,123,206.80

Finding the Fourth Proportional to 12,308,288.40, 18,465,845.40 and 5,123,206.80

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Solution

The fourth proportional to 12,308,288.40, 18,465,845.40 and 5,123,206.80 is: 7,686,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308,288.40 : 18,465,845.40 = 5,123,206.80 : x
  2. Step 2: Convert to fraction form
    12,308,288.40/18,465,845.40 = 5,123,206.80/x
  3. Step 3: Cross multiply
    12,308,288.40x = 18,465,845.40 × 5,123,206.80
  4. Step 4: Simplify right side
    12,308,288.40x = 94,604,344,721,028.70
  5. Step 5: Solve for x
    x = 94,604,344,721,028.70/12,308,288.40
  6. Step 6: Final answer
    x = 7,686,230.75

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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.