Home / 261,451,521.40-392,555,195.70-197,206,209.40

Finding the Fourth Proportional to 261,451,521.40, 392,555,195.70 and 197,206,209.40

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Solution

The fourth proportional to 261,451,521.40, 392,555,195.70 and 197,206,209.40 is: 296,094,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,451,521.40 : 392,555,195.70 = 197,206,209.40 : x
  2. Step 2: Convert to fraction form
    261,451,521.40/392,555,195.70 = 197,206,209.40/x
  3. Step 3: Cross multiply
    261,451,521.40x = 392,555,195.70 × 197,206,209.40
  4. Step 4: Simplify right side
    261,451,521.40x = 77,414,322,124,272,176
  5. Step 5: Solve for x
    x = 77,414,322,124,272,176/261,451,521.40
  6. Step 6: Final answer
    x = 296,094,364.68

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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.