Home / 12,728,686.32-19,091,134.08-4,209,067.44

Finding the Fourth Proportional to 12,728,686.32, 19,091,134.08 and 4,209,067.44

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Solution

The fourth proportional to 12,728,686.32, 19,091,134.08 and 4,209,067.44 is: 6,312,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728,686.32 : 19,091,134.08 = 4,209,067.44 : x
  2. Step 2: Convert to fraction form
    12,728,686.32/19,091,134.08 = 4,209,067.44/x
  3. Step 3: Cross multiply
    12,728,686.32x = 19,091,134.08 × 4,209,067.44
  4. Step 4: Simplify right side
    12,728,686.32x = 80,355,870,848,802.36
  5. Step 5: Solve for x
    x = 80,355,870,848,802.36/12,728,686.32
  6. Step 6: Final answer
    x = 6,312,974.40

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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.