Home / 419,670,535.40-579,135,111.48-231,494,709.16

Finding the Fourth Proportional to 419,670,535.40, 579,135,111.48 and 231,494,709.16

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Solution

The fourth proportional to 419,670,535.40, 579,135,111.48 and 231,494,709.16 is: 319,457,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,670,535.40 : 579,135,111.48 = 231,494,709.16 : x
  2. Step 2: Convert to fraction form
    419,670,535.40/579,135,111.48 = 231,494,709.16/x
  3. Step 3: Cross multiply
    419,670,535.40x = 579,135,111.48 × 231,494,709.16
  4. Step 4: Simplify right side
    419,670,535.40x = 134,066,714,196,406,784
  5. Step 5: Solve for x
    x = 134,066,714,196,406,784/419,670,535.40
  6. Step 6: Final answer
    x = 319,457,057.11

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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.