Home / 7,929,421.31-11,894,142.38-2,172,206.12

Finding the Fourth Proportional to 7,929,421.31, 11,894,142.38 and 2,172,206.12

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Solution

The fourth proportional to 7,929,421.31, 11,894,142.38 and 2,172,206.12 is: 3,258,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929,421.31 : 11,894,142.38 = 2,172,206.12 : x
  2. Step 2: Convert to fraction form
    7,929,421.31/11,894,142.38 = 2,172,206.12/x
  3. Step 3: Cross multiply
    7,929,421.31x = 11,894,142.38 × 2,172,206.12
  4. Step 4: Simplify right side
    7,929,421.31x = 25,836,528,869,987.37
  5. Step 5: Solve for x
    x = 25,836,528,869,987.37/7,929,421.31
  6. Step 6: Final answer
    x = 3,258,312.03

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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.