Home / 10,531,018.90-15,768,143.25-6,878,704.42

Finding the Fourth Proportional to 10,531,018.90, 15,768,143.25 and 6,878,704.42

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Solution

The fourth proportional to 10,531,018.90, 15,768,143.25 and 6,878,704.42 is: 10,299,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,018.90 : 15,768,143.25 = 6,878,704.42 : x
  2. Step 2: Convert to fraction form
    10,531,018.90/15,768,143.25 = 6,878,704.42/x
  3. Step 3: Cross multiply
    10,531,018.90x = 15,768,143.25 × 6,878,704.42
  4. Step 4: Simplify right side
    10,531,018.90x = 108,464,396,668,968.16
  5. Step 5: Solve for x
    x = 108,464,396,668,968.16/10,531,018.90
  6. Step 6: Final answer
    x = 10,299,515.91

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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.