Home / 128,232,593,573.76-176,887,457,294-79,976,858,912.40

Finding the Fourth Proportional to 128,232,593,573.76, 176,887,457,294 and 79,976,858,912.40

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Solution

The fourth proportional to 128,232,593,573.76, 176,887,457,294 and 79,976,858,912.40 is: 110,322,210,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232,593,573.76 : 176,887,457,294 = 79,976,858,912.40 : x
  2. Step 2: Convert to fraction form
    128,232,593,573.76/176,887,457,294 = 79,976,858,912.40/x
  3. Step 3: Cross multiply
    128,232,593,573.76x = 176,887,457,294 × 79,976,858,912.40
  4. Step 4: Simplify right side
    128,232,593,573.76x = 14,146,903,215,375,418,130,432
  5. Step 5: Solve for x
    x = 14,146,903,215,375,418,130,432/128,232,593,573.76
  6. Step 6: Final answer
    x = 110,322,210,766.47

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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.