Home / 128,232,593,543.16-176,887,457,251.92-79,976,858,881.86

Finding the Fourth Proportional to 128,232,593,543.16, 176,887,457,251.92 and 79,976,858,881.86

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Solution

The fourth proportional to 128,232,593,543.16, 176,887,457,251.92 and 79,976,858,881.86 is: 110,322,210,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232,593,543.16 : 176,887,457,251.92 = 79,976,858,881.86 : x
  2. Step 2: Convert to fraction form
    128,232,593,543.16/176,887,457,251.92 = 79,976,858,881.86/x
  3. Step 3: Cross multiply
    128,232,593,543.16x = 176,887,457,251.92 × 79,976,858,881.86
  4. Step 4: Simplify right side
    128,232,593,543.16x = 14,146,903,206,607,850,569,728
  5. Step 5: Solve for x
    x = 14,146,903,206,607,850,569,728/128,232,593,543.16
  6. Step 6: Final answer
    x = 110,322,210,724.42

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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.