Home / 380,162,172.44-569,278,688.64-318,589,418.12

Finding the Fourth Proportional to 380,162,172.44, 569,278,688.64 and 318,589,418.12

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Solution

The fourth proportional to 380,162,172.44, 569,278,688.64 and 318,589,418.12 is: 477,075,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,162,172.44 : 569,278,688.64 = 318,589,418.12 : x
  2. Step 2: Convert to fraction form
    380,162,172.44/569,278,688.64 = 318,589,418.12/x
  3. Step 3: Cross multiply
    380,162,172.44x = 569,278,688.64 × 318,589,418.12
  4. Step 4: Simplify right side
    380,162,172.44x = 181,366,166,161,934,240
  5. Step 5: Solve for x
    x = 181,366,166,161,934,240/380,162,172.44
  6. Step 6: Final answer
    x = 477,075,783.21

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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.