Home / 12,953,479.20-19,430,218.80-9,171,232.80

Finding the Fourth Proportional to 12,953,479.20, 19,430,218.80 and 9,171,232.80

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Solution

The fourth proportional to 12,953,479.20, 19,430,218.80 and 9,171,232.80 is: 13,756,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,479.20 : 19,430,218.80 = 9,171,232.80 : x
  2. Step 2: Convert to fraction form
    12,953,479.20/19,430,218.80 = 9,171,232.80/x
  3. Step 3: Cross multiply
    12,953,479.20x = 19,430,218.80 × 9,171,232.80
  4. Step 4: Simplify right side
    12,953,479.20x = 178,199,059,969,736.66
  5. Step 5: Solve for x
    x = 178,199,059,969,736.66/12,953,479.20
  6. Step 6: Final answer
    x = 13,756,849.20

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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.