Home / 525,313,322.40-787,969,983.60-161,760,439.20

Finding the Fourth Proportional to 525,313,322.40, 787,969,983.60 and 161,760,439.20

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Solution

The fourth proportional to 525,313,322.40, 787,969,983.60 and 161,760,439.20 is: 242,640,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,313,322.40 : 787,969,983.60 = 161,760,439.20 : x
  2. Step 2: Convert to fraction form
    525,313,322.40/787,969,983.60 = 161,760,439.20/x
  3. Step 3: Cross multiply
    525,313,322.40x = 787,969,983.60 × 161,760,439.20
  4. Step 4: Simplify right side
    525,313,322.40x = 127,462,370,623,552,784
  5. Step 5: Solve for x
    x = 127,462,370,623,552,784/525,313,322.40
  6. Step 6: Final answer
    x = 242,640,658.80

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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.