Home / 28,597,857,494.28-42,906,439,977.78-12,659,995,490.64

Finding the Fourth Proportional to 28,597,857,494.28, 42,906,439,977.78 and 12,659,995,490.64

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Solution

The fourth proportional to 28,597,857,494.28, 42,906,439,977.78 and 12,659,995,490.64 is: 18,994,266,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597,857,494.28 : 42,906,439,977.78 = 12,659,995,490.64 : x
  2. Step 2: Convert to fraction form
    28,597,857,494.28/42,906,439,977.78 = 12,659,995,490.64/x
  3. Step 3: Cross multiply
    28,597,857,494.28x = 42,906,439,977.78 × 12,659,995,490.64
  4. Step 4: Simplify right side
    28,597,857,494.28x = 543,195,336,638,110,564,352
  5. Step 5: Solve for x
    x = 543,195,336,638,110,564,352/28,597,857,494.28
  6. Step 6: Final answer
    x = 18,994,266,851.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.