Home / 12,438,207.78-17,163,972.68-6,856,210.16

Finding the Fourth Proportional to 12,438,207.78, 17,163,972.68 and 6,856,210.16

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Solution

The fourth proportional to 12,438,207.78, 17,163,972.68 and 6,856,210.16 is: 9,461,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,207.78 : 17,163,972.68 = 6,856,210.16 : x
  2. Step 2: Convert to fraction form
    12,438,207.78/17,163,972.68 = 6,856,210.16/x
  3. Step 3: Cross multiply
    12,438,207.78x = 17,163,972.68 × 6,856,210.16
  4. Step 4: Simplify right side
    12,438,207.78x = 117,679,803,874,578.42
  5. Step 5: Solve for x
    x = 117,679,803,874,578.42/12,438,207.78
  6. Step 6: Final answer
    x = 9,461,154.37

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1.5x scale

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.