Home / 171,000,422.40-256,668,595.20-84,836,121.60

Finding the Fourth Proportional to 171,000,422.40, 256,668,595.20 and 84,836,121.60

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Solution

The fourth proportional to 171,000,422.40, 256,668,595.20 and 84,836,121.60 is: 127,337,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,000,422.40 : 256,668,595.20 = 84,836,121.60 : x
  2. Step 2: Convert to fraction form
    171,000,422.40/256,668,595.20 = 84,836,121.60/x
  3. Step 3: Cross multiply
    171,000,422.40x = 256,668,595.20 × 84,836,121.60
  4. Step 4: Simplify right side
    171,000,422.40x = 21,774,768,153,288,372
  5. Step 5: Solve for x
    x = 21,774,768,153,288,372/171,000,422.40
  6. Step 6: Final answer
    x = 127,337,510.91

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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.