Home / 21,256,479.61-31,889,778.83-6,879,547.42

Finding the Fourth Proportional to 21,256,479.61, 31,889,778.83 and 6,879,547.42

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Solution

The fourth proportional to 21,256,479.61, 31,889,778.83 and 6,879,547.42 is: 10,320,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256,479.61 : 31,889,778.83 = 6,879,547.42 : x
  2. Step 2: Convert to fraction form
    21,256,479.61/31,889,778.83 = 6,879,547.42/x
  3. Step 3: Cross multiply
    21,256,479.61x = 31,889,778.83 × 6,879,547.42
  4. Step 4: Simplify right side
    21,256,479.61x = 219,387,245,674,297.09
  5. Step 5: Solve for x
    x = 219,387,245,674,297.09/21,256,479.61
  6. Step 6: Final answer
    x = 10,320,958.58

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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.