Home / 919,327,378.90-1,378,991,068.35-804,536,122.90

Finding the Fourth Proportional to 919,327,378.90, 1,378,991,068.35 and 804,536,122.90

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Solution

The fourth proportional to 919,327,378.90, 1,378,991,068.35 and 804,536,122.90 is: 1,206,804,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,327,378.90 : 1,378,991,068.35 = 804,536,122.90 : x
  2. Step 2: Convert to fraction form
    919,327,378.90/1,378,991,068.35 = 804,536,122.90/x
  3. Step 3: Cross multiply
    919,327,378.90x = 1,378,991,068.35 × 804,536,122.90
  4. Step 4: Simplify right side
    919,327,378.90x = 1,109,448,127,644,037,760
  5. Step 5: Solve for x
    x = 1,109,448,127,644,037,760/919,327,378.90
  6. Step 6: Final answer
    x = 1,206,804,184.35

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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.