Home / 127,939,682.80-191,909,524.20-84,857,532.40

Finding the Fourth Proportional to 127,939,682.80, 191,909,524.20 and 84,857,532.40

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Solution

The fourth proportional to 127,939,682.80, 191,909,524.20 and 84,857,532.40 is: 127,286,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,682.80 : 191,909,524.20 = 84,857,532.40 : x
  2. Step 2: Convert to fraction form
    127,939,682.80/191,909,524.20 = 84,857,532.40/x
  3. Step 3: Cross multiply
    127,939,682.80x = 191,909,524.20 × 84,857,532.40
  4. Step 4: Simplify right side
    127,939,682.80x = 16,284,968,667,670,084
  5. Step 5: Solve for x
    x = 16,284,968,667,670,084/127,939,682.80
  6. Step 6: Final answer
    x = 127,286,298.60

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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.