Home / 1,179,595,999.60-1,769,393,999.40-812,263,980.40

Finding the Fourth Proportional to 1,179,595,999.60, 1,769,393,999.40 and 812,263,980.40

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Solution

The fourth proportional to 1,179,595,999.60, 1,769,393,999.40 and 812,263,980.40 is: 1,218,395,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,595,999.60 : 1,769,393,999.40 = 812,263,980.40 : x
  2. Step 2: Convert to fraction form
    1,179,595,999.60/1,769,393,999.40 = 812,263,980.40/x
  3. Step 3: Cross multiply
    1,179,595,999.60x = 1,769,393,999.40 × 812,263,980.40
  4. Step 4: Simplify right side
    1,179,595,999.60x = 1,437,215,012,848,519,168
  5. Step 5: Solve for x
    x = 1,437,215,012,848,519,168/1,179,595,999.60
  6. Step 6: Final answer
    x = 1,218,395,970.60

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1.5x scale

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.