Home / 1,023,935,438.76-1,412,510,335.32-621,942,214.20

Finding the Fourth Proportional to 1,023,935,438.76, 1,412,510,335.32 and 621,942,214.20

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Solution

The fourth proportional to 1,023,935,438.76, 1,412,510,335.32 and 621,942,214.20 is: 857,964,059.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023,935,438.76 : 1,412,510,335.32 = 621,942,214.20 : x
  2. Step 2: Convert to fraction form
    1,023,935,438.76/1,412,510,335.32 = 621,942,214.20/x
  3. Step 3: Cross multiply
    1,023,935,438.76x = 1,412,510,335.32 × 621,942,214.20
  4. Step 4: Simplify right side
    1,023,935,438.76x = 878,499,805,529,305,344
  5. Step 5: Solve for x
    x = 878,499,805,529,305,344/1,023,935,438.76
  6. Step 6: Final answer
    x = 857,964,059.33

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Half scale
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Double scale
Find fourth proportional to 1,023,935,439.76, 1,412,510,336.70 and 621,942,215.20
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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.