Home / 85,193,782.16-127,790,673-20,497,588.16

Finding the Fourth Proportional to 85,193,782.16, 127,790,673 and 20,497,588.16

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Solution

The fourth proportional to 85,193,782.16, 127,790,673 and 20,497,588.16 is: 30,746,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,193,782.16 : 127,790,673 = 20,497,588.16 : x
  2. Step 2: Convert to fraction form
    85,193,782.16/127,790,673 = 20,497,588.16/x
  3. Step 3: Cross multiply
    85,193,782.16x = 127,790,673 × 20,497,588.16
  4. Step 4: Simplify right side
    85,193,782.16x = 2,619,400,585,843,231.50
  5. Step 5: Solve for x
    x = 2,619,400,585,843,231.50/85,193,782.16
  6. Step 6: Final answer
    x = 30,746,382.18

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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.