Home / 8,939,170.77-12,335,823.40-5,218,714.71

Finding the Fourth Proportional to 8,939,170.77, 12,335,823.40 and 5,218,714.71

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Solution

The fourth proportional to 8,939,170.77, 12,335,823.40 and 5,218,714.71 is: 7,201,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939,170.77 : 12,335,823.40 = 5,218,714.71 : x
  2. Step 2: Convert to fraction form
    8,939,170.77/12,335,823.40 = 5,218,714.71/x
  3. Step 3: Cross multiply
    8,939,170.77x = 12,335,823.40 × 5,218,714.71
  4. Step 4: Simplify right side
    8,939,170.77x = 64,377,143,037,542.22
  5. Step 5: Solve for x
    x = 64,377,143,037,542.22/8,939,170.77
  6. Step 6: Final answer
    x = 7,201,690.70

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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.