Home / 1,049,076,123.13-1,448,378,408.96-667,813,280.59

Finding the Fourth Proportional to 1,049,076,123.13, 1,448,378,408.96 and 667,813,280.59

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Solution

The fourth proportional to 1,049,076,123.13, 1,448,378,408.96 and 667,813,280.59 is: 921,998,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,076,123.13 : 1,448,378,408.96 = 667,813,280.59 : x
  2. Step 2: Convert to fraction form
    1,049,076,123.13/1,448,378,408.96 = 667,813,280.59/x
  3. Step 3: Cross multiply
    1,049,076,123.13x = 1,448,378,408.96 × 667,813,280.59
  4. Step 4: Simplify right side
    1,049,076,123.13x = 967,246,336,823,302,272
  5. Step 5: Solve for x
    x = 967,246,336,823,302,272/1,049,076,123.13
  6. Step 6: Final answer
    x = 921,998,237.78

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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.