Home / 15,725,909.06-21,701,547.46-8,661,366.55

Finding the Fourth Proportional to 15,725,909.06, 21,701,547.46 and 8,661,366.55

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Solution

The fourth proportional to 15,725,909.06, 21,701,547.46 and 8,661,366.55 is: 11,952,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725,909.06 : 21,701,547.46 = 8,661,366.55 : x
  2. Step 2: Convert to fraction form
    15,725,909.06/21,701,547.46 = 8,661,366.55/x
  3. Step 3: Cross multiply
    15,725,909.06x = 21,701,547.46 × 8,661,366.55
  4. Step 4: Simplify right side
    15,725,909.06x = 187,965,057,315,599.53
  5. Step 5: Solve for x
    x = 187,965,057,315,599.53/15,725,909.06
  6. Step 6: Final answer
    x = 11,952,571.81

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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.