Home / 12,454,699.20-18,682,048.80-7,415,851.20

Finding the Fourth Proportional to 12,454,699.20, 18,682,048.80 and 7,415,851.20

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Solution

The fourth proportional to 12,454,699.20, 18,682,048.80 and 7,415,851.20 is: 11,123,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,699.20 : 18,682,048.80 = 7,415,851.20 : x
  2. Step 2: Convert to fraction form
    12,454,699.20/18,682,048.80 = 7,415,851.20/x
  3. Step 3: Cross multiply
    12,454,699.20x = 18,682,048.80 × 7,415,851.20
  4. Step 4: Simplify right side
    12,454,699.20x = 138,543,294,011,938.56
  5. Step 5: Solve for x
    x = 138,543,294,011,938.56/12,454,699.20
  6. Step 6: Final answer
    x = 11,123,776.80

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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.