Home / 919,327,343.40-1,378,991,015.10-804,536,087.40

Finding the Fourth Proportional to 919,327,343.40, 1,378,991,015.10 and 804,536,087.40

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Solution

The fourth proportional to 919,327,343.40, 1,378,991,015.10 and 804,536,087.40 is: 1,206,804,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,327,343.40 : 1,378,991,015.10 = 804,536,087.40 : x
  2. Step 2: Convert to fraction form
    919,327,343.40/1,378,991,015.10 = 804,536,087.40/x
  3. Step 3: Cross multiply
    919,327,343.40x = 1,378,991,015.10 × 804,536,087.40
  4. Step 4: Simplify right side
    919,327,343.40x = 1,109,448,035,848,308,224
  5. Step 5: Solve for x
    x = 1,109,448,035,848,308,224/919,327,343.40
  6. Step 6: Final answer
    x = 1,206,804,131.10

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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.