Home / 109,651,870,857.51-151,283,410,400.09-66,231,931,801.18

Finding the Fourth Proportional to 109,651,870,857.51, 151,283,410,400.09 and 66,231,931,801.18

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Solution

The fourth proportional to 109,651,870,857.51, 151,283,410,400.09 and 66,231,931,801.18 is: 91,378,217,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651,870,857.51 : 151,283,410,400.09 = 66,231,931,801.18 : x
  2. Step 2: Convert to fraction form
    109,651,870,857.51/151,283,410,400.09 = 66,231,931,801.18/x
  3. Step 3: Cross multiply
    109,651,870,857.51x = 151,283,410,400.09 × 66,231,931,801.18
  4. Step 4: Simplify right side
    109,651,870,857.51x = 10,019,792,520,269,290,012,672
  5. Step 5: Solve for x
    x = 10,019,792,520,269,290,012,672/109,651,870,857.51
  6. Step 6: Final answer
    x = 91,378,217,643.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.