Home / 15,369,425.88-21,209,841.54-8,400,215.04

Finding the Fourth Proportional to 15,369,425.88, 21,209,841.54 and 8,400,215.04

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Solution

The fourth proportional to 15,369,425.88, 21,209,841.54 and 8,400,215.04 is: 11,592,315.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369,425.88 : 21,209,841.54 = 8,400,215.04 : x
  2. Step 2: Convert to fraction form
    15,369,425.88/21,209,841.54 = 8,400,215.04/x
  3. Step 3: Cross multiply
    15,369,425.88x = 21,209,841.54 × 8,400,215.04
  4. Step 4: Simplify right side
    15,369,425.88x = 178,167,229,900,324.75
  5. Step 5: Solve for x
    x = 178,167,229,900,324.75/15,369,425.88
  6. Step 6: Final answer
    x = 11,592,315.24

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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.