Home / 12,705,486.39-19,056,653.78-7,521,180.75

Finding the Fourth Proportional to 12,705,486.39, 19,056,653.78 and 7,521,180.75

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Solution

The fourth proportional to 12,705,486.39, 19,056,653.78 and 7,521,180.75 is: 11,280,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705,486.39 : 19,056,653.78 = 7,521,180.75 : x
  2. Step 2: Convert to fraction form
    12,705,486.39/19,056,653.78 = 7,521,180.75/x
  3. Step 3: Cross multiply
    12,705,486.39x = 19,056,653.78 × 7,521,180.75
  4. Step 4: Simplify right side
    12,705,486.39x = 143,328,537,531,944.81
  5. Step 5: Solve for x
    x = 143,328,537,531,944.81/12,705,486.39
  6. Step 6: Final answer
    x = 11,280,838.30

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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.