Home / 1,188,267,445.80-1,782,392,311.35-359,219,485.80

Finding the Fourth Proportional to 1,188,267,445.80, 1,782,392,311.35 and 359,219,485.80

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Solution

The fourth proportional to 1,188,267,445.80, 1,782,392,311.35 and 359,219,485.80 is: 538,826,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,267,445.80 : 1,782,392,311.35 = 359,219,485.80 : x
  2. Step 2: Convert to fraction form
    1,188,267,445.80/1,782,392,311.35 = 359,219,485.80/x
  3. Step 3: Cross multiply
    1,188,267,445.80x = 1,782,392,311.35 × 359,219,485.80
  4. Step 4: Simplify right side
    1,188,267,445.80x = 640,270,049,577,020,544
  5. Step 5: Solve for x
    x = 640,270,049,577,020,544/1,188,267,445.80
  6. Step 6: Final answer
    x = 538,826,551.08

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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.