Home / 38,458,446,660.40-53,072,968,007.75-21,311,586,357.26

Finding the Fourth Proportional to 38,458,446,660.40, 53,072,968,007.75 and 21,311,586,357.26

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Solution

The fourth proportional to 38,458,446,660.40, 53,072,968,007.75 and 21,311,586,357.26 is: 29,410,161,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458,446,660.40 : 53,072,968,007.75 = 21,311,586,357.26 : x
  2. Step 2: Convert to fraction form
    38,458,446,660.40/53,072,968,007.75 = 21,311,586,357.26/x
  3. Step 3: Cross multiply
    38,458,446,660.40x = 53,072,968,007.75 × 21,311,586,357.26
  4. Step 4: Simplify right side
    38,458,446,660.40x = 1,131,069,140,933,006,458,880
  5. Step 5: Solve for x
    x = 1,131,069,140,933,006,458,880/38,458,446,660.40
  6. Step 6: Final answer
    x = 29,410,161,853.92

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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.