Home / 874,012,559.20-1,206,138,628.64-497,669,453.76

Finding the Fourth Proportional to 874,012,559.20, 1,206,138,628.64 and 497,669,453.76

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Solution

The fourth proportional to 874,012,559.20, 1,206,138,628.64 and 497,669,453.76 is: 686,784,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,012,559.20 : 1,206,138,628.64 = 497,669,453.76 : x
  2. Step 2: Convert to fraction form
    874,012,559.20/1,206,138,628.64 = 497,669,453.76/x
  3. Step 3: Cross multiply
    874,012,559.20x = 1,206,138,628.64 × 497,669,453.76
  4. Step 4: Simplify right side
    874,012,559.20x = 600,258,352,474,104,320
  5. Step 5: Solve for x
    x = 600,258,352,474,104,320/874,012,559.20
  6. Step 6: Final answer
    x = 686,784,584.68

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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.