Home / 128,232,593,574.76-176,887,457,295.38-79,976,858,913.40

Finding the Fourth Proportional to 128,232,593,574.76, 176,887,457,295.38 and 79,976,858,913.40

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Solution

The fourth proportional to 128,232,593,574.76, 176,887,457,295.38 and 79,976,858,913.40 is: 110,322,210,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232,593,574.76 : 176,887,457,295.38 = 79,976,858,913.40 : x
  2. Step 2: Convert to fraction form
    128,232,593,574.76/176,887,457,295.38 = 79,976,858,913.40/x
  3. Step 3: Cross multiply
    128,232,593,574.76x = 176,887,457,295.38 × 79,976,858,913.40
  4. Step 4: Simplify right side
    128,232,593,574.76x = 14,146,903,215,662,673,428,480
  5. Step 5: Solve for x
    x = 14,146,903,215,662,673,428,480/128,232,593,574.76
  6. Step 6: Final answer
    x = 110,322,210,767.85

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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.