Home / 8,458,649.79-12,685,943.13-3,905,323.74

Finding the Fourth Proportional to 8,458,649.79, 12,685,943.13 and 3,905,323.74

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Solution

The fourth proportional to 8,458,649.79, 12,685,943.13 and 3,905,323.74 is: 5,857,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,649.79 : 12,685,943.13 = 3,905,323.74 : x
  2. Step 2: Convert to fraction form
    8,458,649.79/12,685,943.13 = 3,905,323.74/x
  3. Step 3: Cross multiply
    8,458,649.79x = 12,685,943.13 × 3,905,323.74
  4. Step 4: Simplify right side
    8,458,649.79x = 49,542,714,869,878.91
  5. Step 5: Solve for x
    x = 49,542,714,869,878.91/8,458,649.79
  6. Step 6: Final answer
    x = 5,857,047.65

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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.