Home / 28,868,277.29-39,838,220.69-15,815,998.85

Finding the Fourth Proportional to 28,868,277.29, 39,838,220.69 and 15,815,998.85

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Solution

The fourth proportional to 28,868,277.29, 39,838,220.69 and 15,815,998.85 is: 21,826,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868,277.29 : 39,838,220.69 = 15,815,998.85 : x
  2. Step 2: Convert to fraction form
    28,868,277.29/39,838,220.69 = 15,815,998.85/x
  3. Step 3: Cross multiply
    28,868,277.29x = 39,838,220.69 × 15,815,998.85
  4. Step 4: Simplify right side
    28,868,277.29x = 630,081,252,340,815.12
  5. Step 5: Solve for x
    x = 630,081,252,340,815.12/28,868,277.29
  6. Step 6: Final answer
    x = 21,826,077.33

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Double scale
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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.