Home / 210,104,665.94-315,168,493.07-87,295,400.43

Finding the Fourth Proportional to 210,104,665.94, 315,168,493.07 and 87,295,400.43

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Solution

The fourth proportional to 210,104,665.94, 315,168,493.07 and 87,295,400.43 is: 130,947,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,104,665.94 : 315,168,493.07 = 87,295,400.43 : x
  2. Step 2: Convert to fraction form
    210,104,665.94/315,168,493.07 = 87,295,400.43/x
  3. Step 3: Cross multiply
    210,104,665.94x = 315,168,493.07 × 87,295,400.43
  4. Step 4: Simplify right side
    210,104,665.94x = 27,512,759,805,683,568
  5. Step 5: Solve for x
    x = 27,512,759,805,683,568/210,104,665.94
  6. Step 6: Final answer
    x = 130,947,876.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.