Home / 78,171,285.60-117,256,928.40-34,994,656.80

Finding the Fourth Proportional to 78,171,285.60, 117,256,928.40 and 34,994,656.80

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Solution

The fourth proportional to 78,171,285.60, 117,256,928.40 and 34,994,656.80 is: 52,491,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,285.60 : 117,256,928.40 = 34,994,656.80 : x
  2. Step 2: Convert to fraction form
    78,171,285.60/117,256,928.40 = 34,994,656.80/x
  3. Step 3: Cross multiply
    78,171,285.60x = 117,256,928.40 × 34,994,656.80
  4. Step 4: Simplify right side
    78,171,285.60x = 4,103,365,966,780,173
  5. Step 5: Solve for x
    x = 4,103,365,966,780,173/78,171,285.60
  6. Step 6: Final answer
    x = 52,491,985.20

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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.