Home / 109,651,870,872.48-151,283,410,420.80-66,231,931,816.20

Finding the Fourth Proportional to 109,651,870,872.48, 151,283,410,420.80 and 66,231,931,816.20

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Solution

The fourth proportional to 109,651,870,872.48, 151,283,410,420.80 and 66,231,931,816.20 is: 91,378,217,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651,870,872.48 : 151,283,410,420.80 = 66,231,931,816.20 : x
  2. Step 2: Convert to fraction form
    109,651,870,872.48/151,283,410,420.80 = 66,231,931,816.20/x
  3. Step 3: Cross multiply
    109,651,870,872.48x = 151,283,410,420.80 × 66,231,931,816.20
  4. Step 4: Simplify right side
    109,651,870,872.48x = 10,019,792,523,912,623,947,776
  5. Step 5: Solve for x
    x = 10,019,792,523,912,623,947,776/109,651,870,872.48
  6. Step 6: Final answer
    x = 91,378,217,664.57

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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.