Home / 12,786,089.60-19,179,134.40-8,008,515.20

Finding the Fourth Proportional to 12,786,089.60, 19,179,134.40 and 8,008,515.20

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Solution

The fourth proportional to 12,786,089.60, 19,179,134.40 and 8,008,515.20 is: 12,012,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,089.60 : 19,179,134.40 = 8,008,515.20 : x
  2. Step 2: Convert to fraction form
    12,786,089.60/19,179,134.40 = 8,008,515.20/x
  3. Step 3: Cross multiply
    12,786,089.60x = 19,179,134.40 × 8,008,515.20
  4. Step 4: Simplify right side
    12,786,089.60x = 153,596,389,365,242.88
  5. Step 5: Solve for x
    x = 153,596,389,365,242.88/12,786,089.60
  6. Step 6: Final answer
    x = 12,012,772.80

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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.