Home / 621,617,015.25-857,834,220.92-343,160,826.93

Finding the Fourth Proportional to 621,617,015.25, 857,834,220.92 and 343,160,826.93

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Solution

The fourth proportional to 621,617,015.25, 857,834,220.92 and 343,160,826.93 is: 473,563,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,617,015.25 : 857,834,220.92 = 343,160,826.93 : x
  2. Step 2: Convert to fraction form
    621,617,015.25/857,834,220.92 = 343,160,826.93/x
  3. Step 3: Cross multiply
    621,617,015.25x = 857,834,220.92 × 343,160,826.93
  4. Step 4: Simplify right side
    621,617,015.25x = 294,375,100,618,043,712
  5. Step 5: Solve for x
    x = 294,375,100,618,043,712/621,617,015.25
  6. Step 6: Final answer
    x = 473,563,453.70

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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.