Home / 12,768,019.20-19,152,028.80-4,248,633.60

Finding the Fourth Proportional to 12,768,019.20, 19,152,028.80 and 4,248,633.60

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Solution

The fourth proportional to 12,768,019.20, 19,152,028.80 and 4,248,633.60 is: 6,372,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,019.20 : 19,152,028.80 = 4,248,633.60 : x
  2. Step 2: Convert to fraction form
    12,768,019.20/19,152,028.80 = 4,248,633.60/x
  3. Step 3: Cross multiply
    12,768,019.20x = 19,152,028.80 × 4,248,633.60
  4. Step 4: Simplify right side
    12,768,019.20x = 81,369,953,067,847.67
  5. Step 5: Solve for x
    x = 81,369,953,067,847.67/12,768,019.20
  6. Step 6: Final answer
    x = 6,372,950.40

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Similar ratio
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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.