Home / 160,128,967,280.57-220,981,349,902.01-87,870,399,959.12

Finding the Fourth Proportional to 160,128,967,280.57, 220,981,349,902.01 and 87,870,399,959.12

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Solution

The fourth proportional to 160,128,967,280.57, 220,981,349,902.01 and 87,870,399,959.12 is: 121,263,003,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,128,967,280.57 : 220,981,349,902.01 = 87,870,399,959.12 : x
  2. Step 2: Convert to fraction form
    160,128,967,280.57/220,981,349,902.01 = 87,870,399,959.12/x
  3. Step 3: Cross multiply
    160,128,967,280.57x = 220,981,349,902.01 × 87,870,399,959.12
  4. Step 4: Simplify right side
    160,128,967,280.57x = 19,417,719,599,394,759,639,040
  5. Step 5: Solve for x
    x = 19,417,719,599,394,759,639,040/160,128,967,280.57
  6. Step 6: Final answer
    x = 121,263,003,997.10

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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.