Home / 28,447,081.34-39,257,071.20-15,394,336.80

Finding the Fourth Proportional to 28,447,081.34, 39,257,071.20 and 15,394,336.80

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Solution

The fourth proportional to 28,447,081.34, 39,257,071.20 and 15,394,336.80 is: 21,244,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447,081.34 : 39,257,071.20 = 15,394,336.80 : x
  2. Step 2: Convert to fraction form
    28,447,081.34/39,257,071.20 = 15,394,336.80/x
  3. Step 3: Cross multiply
    28,447,081.34x = 39,257,071.20 × 15,394,336.80
  4. Step 4: Simplify right side
    28,447,081.34x = 604,336,575,834,380.25
  5. Step 5: Solve for x
    x = 604,336,575,834,380.25/28,447,081.34
  6. Step 6: Final answer
    x = 21,244,238.34

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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.