Home / 21,011,004.60-28,995,630-11,843,644.92

Finding the Fourth Proportional to 21,011,004.60, 28,995,630 and 11,843,644.92

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Solution

The fourth proportional to 21,011,004.60, 28,995,630 and 11,843,644.92 is: 16,344,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,004.60 : 28,995,630 = 11,843,644.92 : x
  2. Step 2: Convert to fraction form
    21,011,004.60/28,995,630 = 11,843,644.92/x
  3. Step 3: Cross multiply
    21,011,004.60x = 28,995,630 × 11,843,644.92
  4. Step 4: Simplify right side
    21,011,004.60x = 343,413,945,951,699.62
  5. Step 5: Solve for x
    x = 343,413,945,951,699.62/21,011,004.60
  6. Step 6: Final answer
    x = 16,344,480.07

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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.