Home / 153,231,329.23-211,463,732.23-83,621,202.35

Finding the Fourth Proportional to 153,231,329.23, 211,463,732.23 and 83,621,202.35

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Solution

The fourth proportional to 153,231,329.23, 211,463,732.23 and 83,621,202.35 is: 115,399,713.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,231,329.23 : 211,463,732.23 = 83,621,202.35 : x
  2. Step 2: Convert to fraction form
    153,231,329.23/211,463,732.23 = 83,621,202.35/x
  3. Step 3: Cross multiply
    153,231,329.23x = 211,463,732.23 × 83,621,202.35
  4. Step 4: Simplify right side
    153,231,329.23x = 17,682,851,541,224,674
  5. Step 5: Solve for x
    x = 17,682,851,541,224,674/153,231,329.23
  6. Step 6: Final answer
    x = 115,399,713.82

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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.