Home / 160,416,917.78-221,368,969.24-90,816,736.28

Finding the Fourth Proportional to 160,416,917.78, 221,368,969.24 and 90,816,736.28

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Solution

The fourth proportional to 160,416,917.78, 221,368,969.24 and 90,816,736.28 is: 125,323,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,416,917.78 : 221,368,969.24 = 90,816,736.28 : x
  2. Step 2: Convert to fraction form
    160,416,917.78/221,368,969.24 = 90,816,736.28/x
  3. Step 3: Cross multiply
    160,416,917.78x = 221,368,969.24 × 90,816,736.28
  4. Step 4: Simplify right side
    160,416,917.78x = 20,104,007,298,710,628
  5. Step 5: Solve for x
    x = 20,104,007,298,710,628/160,416,917.78
  6. Step 6: Final answer
    x = 125,323,485.69

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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.