Home / 171,106,005.80-256,659,008.70-84,857,724.20

Finding the Fourth Proportional to 171,106,005.80, 256,659,008.70 and 84,857,724.20

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Solution

The fourth proportional to 171,106,005.80, 256,659,008.70 and 84,857,724.20 is: 127,286,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,106,005.80 : 256,659,008.70 = 84,857,724.20 : x
  2. Step 2: Convert to fraction form
    171,106,005.80/256,659,008.70 = 84,857,724.20/x
  3. Step 3: Cross multiply
    171,106,005.80x = 256,659,008.70 × 84,857,724.20
  4. Step 4: Simplify right side
    171,106,005.80x = 21,779,499,373,710,000
  5. Step 5: Solve for x
    x = 21,779,499,373,710,000/171,106,005.80
  6. Step 6: Final answer
    x = 127,286,586.30

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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.