Home / 128,232,594,022.38-176,887,457,911.35-79,976,859,359.82

Finding the Fourth Proportional to 128,232,594,022.38, 176,887,457,911.35 and 79,976,859,359.82

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Solution

The fourth proportional to 128,232,594,022.38, 176,887,457,911.35 and 79,976,859,359.82 is: 110,322,211,382.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232,594,022.38 : 176,887,457,911.35 = 79,976,859,359.82 : x
  2. Step 2: Convert to fraction form
    128,232,594,022.38/176,887,457,911.35 = 79,976,859,359.82/x
  3. Step 3: Cross multiply
    128,232,594,022.38x = 176,887,457,911.35 × 79,976,859,359.82
  4. Step 4: Simplify right side
    128,232,594,022.38x = 14,146,903,343,892,120,207,360
  5. Step 5: Solve for x
    x = 14,146,903,343,892,120,207,360/128,232,594,022.38
  6. Step 6: Final answer
    x = 110,322,211,382.73

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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.