Home / 21,915,180.36-30,243,841.21-12,125,466

Finding the Fourth Proportional to 21,915,180.36, 30,243,841.21 and 12,125,466

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Solution

The fourth proportional to 21,915,180.36, 30,243,841.21 and 12,125,466 is: 16,733,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,180.36 : 30,243,841.21 = 12,125,466 : x
  2. Step 2: Convert to fraction form
    21,915,180.36/30,243,841.21 = 12,125,466/x
  3. Step 3: Cross multiply
    21,915,180.36x = 30,243,841.21 × 12,125,466
  4. Step 4: Simplify right side
    21,915,180.36x = 366,720,668,301,253.88
  5. Step 5: Solve for x
    x = 366,720,668,301,253.88/21,915,180.36
  6. Step 6: Final answer
    x = 16,733,636.79

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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.