Home / 31,640,621.95-47,366,373.37-19,138,993.55

Finding the Fourth Proportional to 31,640,621.95, 47,366,373.37 and 19,138,993.55

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Solution

The fourth proportional to 31,640,621.95, 47,366,373.37 and 19,138,993.55 is: 28,651,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,640,621.95 : 47,366,373.37 = 19,138,993.55 : x
  2. Step 2: Convert to fraction form
    31,640,621.95/47,366,373.37 = 19,138,993.55/x
  3. Step 3: Cross multiply
    31,640,621.95x = 47,366,373.37 × 19,138,993.55
  4. Step 4: Simplify right side
    31,640,621.95x = 906,544,714,157,100.62
  5. Step 5: Solve for x
    x = 906,544,714,157,100.62/31,640,621.95
  6. Step 6: Final answer
    x = 28,651,292.49

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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.