Home / 20,930,185.92-28,886,050.80-11,638,682.40

Finding the Fourth Proportional to 20,930,185.92, 28,886,050.80 and 11,638,682.40

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Solution

The fourth proportional to 20,930,185.92, 28,886,050.80 and 11,638,682.40 is: 16,062,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930,185.92 : 28,886,050.80 = 11,638,682.40 : x
  2. Step 2: Convert to fraction form
    20,930,185.92/28,886,050.80 = 11,638,682.40/x
  3. Step 3: Cross multiply
    20,930,185.92x = 28,886,050.80 × 11,638,682.40
  4. Step 4: Simplify right side
    20,930,185.92x = 336,195,571,051,465.94
  5. Step 5: Solve for x
    x = 336,195,571,051,465.94/20,930,185.92
  6. Step 6: Final answer
    x = 16,062,713.08

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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.