Home / 81,657,093.60-122,485,640.40-76,618,245.60

Finding the Fourth Proportional to 81,657,093.60, 122,485,640.40 and 76,618,245.60

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Solution

The fourth proportional to 81,657,093.60, 122,485,640.40 and 76,618,245.60 is: 114,927,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657,093.60 : 122,485,640.40 = 76,618,245.60 : x
  2. Step 2: Convert to fraction form
    81,657,093.60/122,485,640.40 = 76,618,245.60/x
  3. Step 3: Cross multiply
    81,657,093.60x = 122,485,640.40 × 76,618,245.60
  4. Step 4: Simplify right side
    81,657,093.60x = 9,384,634,878,640,482
  5. Step 5: Solve for x
    x = 9,384,634,878,640,482/81,657,093.60
  6. Step 6: Final answer
    x = 114,927,368.40

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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.