Home / 78,397,180.93-117,611,468.64-43,902,637.37

Finding the Fourth Proportional to 78,397,180.93, 117,611,468.64 and 43,902,637.37

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Solution

The fourth proportional to 78,397,180.93, 117,611,468.64 and 43,902,637.37 is: 65,862,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397,180.93 : 117,611,468.64 = 43,902,637.37 : x
  2. Step 2: Convert to fraction form
    78,397,180.93/117,611,468.64 = 43,902,637.37/x
  3. Step 3: Cross multiply
    78,397,180.93x = 117,611,468.64 × 43,902,637.37
  4. Step 4: Simplify right side
    78,397,180.93x = 5,163,453,658,108,268
  5. Step 5: Solve for x
    x = 5,163,453,658,108,268/78,397,180.93
  6. Step 6: Final answer
    x = 65,862,746.55

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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.