Home / 109,651,870,873.48-151,283,410,422.18-66,231,931,817.20

Finding the Fourth Proportional to 109,651,870,873.48, 151,283,410,422.18 and 66,231,931,817.20

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Solution

The fourth proportional to 109,651,870,873.48, 151,283,410,422.18 and 66,231,931,817.20 is: 91,378,217,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651,870,873.48 : 151,283,410,422.18 = 66,231,931,817.20 : x
  2. Step 2: Convert to fraction form
    109,651,870,873.48/151,283,410,422.18 = 66,231,931,817.20/x
  3. Step 3: Cross multiply
    109,651,870,873.48x = 151,283,410,422.18 × 66,231,931,817.20
  4. Step 4: Simplify right side
    109,651,870,873.48x = 10,019,792,524,155,308,474,368
  5. Step 5: Solve for x
    x = 10,019,792,524,155,308,474,368/109,651,870,873.48
  6. Step 6: Final answer
    x = 91,378,217,665.95

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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.