Home / 28,385,521.26-39,172,035.14-15,332,780.30

Finding the Fourth Proportional to 28,385,521.26, 39,172,035.14 and 15,332,780.30

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Solution

The fourth proportional to 28,385,521.26, 39,172,035.14 and 15,332,780.30 is: 21,159,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,521.26 : 39,172,035.14 = 15,332,780.30 : x
  2. Step 2: Convert to fraction form
    28,385,521.26/39,172,035.14 = 15,332,780.30/x
  3. Step 3: Cross multiply
    28,385,521.26x = 39,172,035.14 × 15,332,780.30
  4. Step 4: Simplify right side
    28,385,521.26x = 600,616,208,705,499.75
  5. Step 5: Solve for x
    x = 600,616,208,705,499.75/28,385,521.26
  6. Step 6: Final answer
    x = 21,159,245.35

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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.