Home / 28,808,856.18-39,755,662.83-15,756,074.70

Finding the Fourth Proportional to 28,808,856.18, 39,755,662.83 and 15,756,074.70

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Solution

The fourth proportional to 28,808,856.18, 39,755,662.83 and 15,756,074.70 is: 21,743,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,856.18 : 39,755,662.83 = 15,756,074.70 : x
  2. Step 2: Convert to fraction form
    28,808,856.18/39,755,662.83 = 15,756,074.70/x
  3. Step 3: Cross multiply
    28,808,856.18x = 39,755,662.83 × 15,756,074.70
  4. Step 4: Simplify right side
    28,808,856.18x = 626,393,193,297,493.38
  5. Step 5: Solve for x
    x = 626,393,193,297,493.38/28,808,856.18
  6. Step 6: Final answer
    x = 21,743,077.52

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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.