Home / 728,710,279.80-1,093,065,419.70-211,157,604.60

Finding the Fourth Proportional to 728,710,279.80, 1,093,065,419.70 and 211,157,604.60

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Solution

The fourth proportional to 728,710,279.80, 1,093,065,419.70 and 211,157,604.60 is: 316,736,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,710,279.80 : 1,093,065,419.70 = 211,157,604.60 : x
  2. Step 2: Convert to fraction form
    728,710,279.80/1,093,065,419.70 = 211,157,604.60/x
  3. Step 3: Cross multiply
    728,710,279.80x = 1,093,065,419.70 × 211,157,604.60
  4. Step 4: Simplify right side
    728,710,279.80x = 230,809,075,694,945,664
  5. Step 5: Solve for x
    x = 230,809,075,694,945,664/728,710,279.80
  6. Step 6: Final answer
    x = 316,736,406.90

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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.