Home / 152,232,859-210,081,453.42-82,618,223.32

Finding the Fourth Proportional to 152,232,859, 210,081,453.42 and 82,618,223.32

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Solution

The fourth proportional to 152,232,859, 210,081,453.42 and 82,618,223.32 is: 114,013,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,232,859 : 210,081,453.42 = 82,618,223.32 : x
  2. Step 2: Convert to fraction form
    152,232,859/210,081,453.42 = 82,618,223.32/x
  3. Step 3: Cross multiply
    152,232,859x = 210,081,453.42 × 82,618,223.32
  4. Step 4: Simplify right side
    152,232,859x = 17,356,556,434,043,736
  5. Step 5: Solve for x
    x = 17,356,556,434,043,736/152,232,859
  6. Step 6: Final answer
    x = 114,013,206.79

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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.