Home / 12,679,690.48-17,498,017.18-6,878,513.51

Finding the Fourth Proportional to 12,679,690.48, 17,498,017.18 and 6,878,513.51

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Solution

The fourth proportional to 12,679,690.48, 17,498,017.18 and 6,878,513.51 is: 9,492,372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679,690.48 : 17,498,017.18 = 6,878,513.51 : x
  2. Step 2: Convert to fraction form
    12,679,690.48/17,498,017.18 = 6,878,513.51/x
  3. Step 3: Cross multiply
    12,679,690.48x = 17,498,017.18 × 6,878,513.51
  4. Step 4: Simplify right side
    12,679,690.48x = 120,360,347,597,390.86
  5. Step 5: Solve for x
    x = 120,360,347,597,390.86/12,679,690.48
  6. Step 6: Final answer
    x = 9,492,372.69

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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.