Home / 78,743,989.44-108,667,005.84-43,938,146.88

Finding the Fourth Proportional to 78,743,989.44, 108,667,005.84 and 43,938,146.88

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Solution

The fourth proportional to 78,743,989.44, 108,667,005.84 and 43,938,146.88 is: 60,634,810.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743,989.44 : 108,667,005.84 = 43,938,146.88 : x
  2. Step 2: Convert to fraction form
    78,743,989.44/108,667,005.84 = 43,938,146.88/x
  3. Step 3: Cross multiply
    78,743,989.44x = 108,667,005.84 × 43,938,146.88
  4. Step 4: Simplify right side
    78,743,989.44x = 4,774,626,863,607,738
  5. Step 5: Solve for x
    x = 4,774,626,863,607,738/78,743,989.44
  6. Step 6: Final answer
    x = 60,634,810.32

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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.