Home / 28,410,479.29-39,203,535.70-20,972,098.63

Finding the Fourth Proportional to 28,410,479.29, 39,203,535.70 and 20,972,098.63

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Solution

The fourth proportional to 28,410,479.29, 39,203,535.70 and 20,972,098.63 is: 28,939,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410,479.29 : 39,203,535.70 = 20,972,098.63 : x
  2. Step 2: Convert to fraction form
    28,410,479.29/39,203,535.70 = 20,972,098.63/x
  3. Step 3: Cross multiply
    28,410,479.29x = 39,203,535.70 × 20,972,098.63
  4. Step 4: Simplify right side
    28,410,479.29x = 822,180,417,420,345.75
  5. Step 5: Solve for x
    x = 822,180,417,420,345.75/28,410,479.29
  6. Step 6: Final answer
    x = 28,939,336.40

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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.