Home / 5,320,400.40-7,980,600.60-3,075,382.80

Finding the Fourth Proportional to 5,320,400.40, 7,980,600.60 and 3,075,382.80

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Solution

The fourth proportional to 5,320,400.40, 7,980,600.60 and 3,075,382.80 is: 4,613,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,400.40 : 7,980,600.60 = 3,075,382.80 : x
  2. Step 2: Convert to fraction form
    5,320,400.40/7,980,600.60 = 3,075,382.80/x
  3. Step 3: Cross multiply
    5,320,400.40x = 7,980,600.60 × 3,075,382.80
  4. Step 4: Simplify right side
    5,320,400.40x = 24,543,401,818,909.68
  5. Step 5: Solve for x
    x = 24,543,401,818,909.68/5,320,400.40
  6. Step 6: Final answer
    x = 4,613,074.20

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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.