Home / 12,879,889.29-17,774,673.35-7,078,876.65

Finding the Fourth Proportional to 12,879,889.29, 17,774,673.35 and 7,078,876.65

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Solution

The fourth proportional to 12,879,889.29, 17,774,673.35 and 7,078,876.65 is: 9,769,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,889.29 : 17,774,673.35 = 7,078,876.65 : x
  2. Step 2: Convert to fraction form
    12,879,889.29/17,774,673.35 = 7,078,876.65/x
  3. Step 3: Cross multiply
    12,879,889.29x = 17,774,673.35 × 7,078,876.65
  4. Step 4: Simplify right side
    12,879,889.29x = 125,824,720,103,297.89
  5. Step 5: Solve for x
    x = 125,824,720,103,297.89/12,879,889.29
  6. Step 6: Final answer
    x = 9,769,083.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.