Home / 1,075,326,856.80-1,611,856,544.40-420,024,674.40

Finding the Fourth Proportional to 1,075,326,856.80, 1,611,856,544.40 and 420,024,674.40

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Solution

The fourth proportional to 1,075,326,856.80, 1,611,856,544.40 and 420,024,674.40 is: 629,594,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,326,856.80 : 1,611,856,544.40 = 420,024,674.40 : x
  2. Step 2: Convert to fraction form
    1,075,326,856.80/1,611,856,544.40 = 420,024,674.40/x
  3. Step 3: Cross multiply
    1,075,326,856.80x = 1,611,856,544.40 × 420,024,674.40
  4. Step 4: Simplify right side
    1,075,326,856.80x = 677,019,520,241,119,104
  5. Step 5: Solve for x
    x = 677,019,520,241,119,104/1,075,326,856.80
  6. Step 6: Final answer
    x = 629,594,170.33

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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.