Home / 15,697,590.86-21,664,471.02-8,728,963.22

Finding the Fourth Proportional to 15,697,590.86, 21,664,471.02 and 8,728,963.22

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Solution

The fourth proportional to 15,697,590.86, 21,664,471.02 and 8,728,963.22 is: 12,046,967.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697,590.86 : 21,664,471.02 = 8,728,963.22 : x
  2. Step 2: Convert to fraction form
    15,697,590.86/21,664,471.02 = 8,728,963.22/x
  3. Step 3: Cross multiply
    15,697,590.86x = 21,664,471.02 × 8,728,963.22
  4. Step 4: Simplify right side
    15,697,590.86x = 189,108,370,714,335.91
  5. Step 5: Solve for x
    x = 189,108,370,714,335.91/15,697,590.86
  6. Step 6: Final answer
    x = 12,046,967.74

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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.