Home / 419,291,844.12-578,648,632.48-231,119,713.60

Finding the Fourth Proportional to 419,291,844.12, 578,648,632.48 and 231,119,713.60

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Solution

The fourth proportional to 419,291,844.12, 578,648,632.48 and 231,119,713.60 is: 318,959,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,291,844.12 : 578,648,632.48 = 231,119,713.60 : x
  2. Step 2: Convert to fraction form
    419,291,844.12/578,648,632.48 = 231,119,713.60/x
  3. Step 3: Cross multiply
    419,291,844.12x = 578,648,632.48 × 231,119,713.60
  4. Step 4: Simplify right side
    419,291,844.12x = 133,737,106,211,780,224
  5. Step 5: Solve for x
    x = 133,737,106,211,780,224/419,291,844.12
  6. Step 6: Final answer
    x = 318,959,474.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.