Home / 419,291,882.09-578,648,684.87-231,119,751.57

Finding the Fourth Proportional to 419,291,882.09, 578,648,684.87 and 231,119,751.57

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Solution

The fourth proportional to 419,291,882.09, 578,648,684.87 and 231,119,751.57 is: 318,959,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,291,882.09 : 578,648,684.87 = 231,119,751.57 : x
  2. Step 2: Convert to fraction form
    419,291,882.09/578,648,684.87 = 231,119,751.57/x
  3. Step 3: Cross multiply
    419,291,882.09x = 578,648,684.87 × 231,119,751.57
  4. Step 4: Simplify right side
    419,291,882.09x = 133,737,140,292,301,664
  5. Step 5: Solve for x
    x = 133,737,140,292,301,664/419,291,882.09
  6. Step 6: Final answer
    x = 318,959,526.78

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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.