Home / 20,856,746.50-28,785,288.23-11,566,382.65

Finding the Fourth Proportional to 20,856,746.50, 28,785,288.23 and 11,566,382.65

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Solution

The fourth proportional to 20,856,746.50, 28,785,288.23 and 11,566,382.65 is: 15,963,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,746.50 : 28,785,288.23 = 11,566,382.65 : x
  2. Step 2: Convert to fraction form
    20,856,746.50/28,785,288.23 = 11,566,382.65/x
  3. Step 3: Cross multiply
    20,856,746.50x = 28,785,288.23 × 11,566,382.65
  4. Step 4: Simplify right side
    20,856,746.50x = 332,941,658,272,300.06
  5. Step 5: Solve for x
    x = 332,941,658,272,300.06/20,856,746.50
  6. Step 6: Final answer
    x = 15,963,259.58

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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.