Home / 419,291,712.88-578,648,452.01-231,119,582.98

Finding the Fourth Proportional to 419,291,712.88, 578,648,452.01 and 231,119,582.98

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Solution

The fourth proportional to 419,291,712.88, 578,648,452.01 and 231,119,582.98 is: 318,959,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,291,712.88 : 578,648,452.01 = 231,119,582.98 : x
  2. Step 2: Convert to fraction form
    419,291,712.88/578,648,452.01 = 231,119,582.98/x
  3. Step 3: Cross multiply
    419,291,712.88x = 578,648,452.01 × 231,119,582.98
  4. Step 4: Simplify right side
    419,291,712.88x = 133,736,988,919,706,528
  5. Step 5: Solve for x
    x = 133,736,988,919,706,528/419,291,712.88
  6. Step 6: Final answer
    x = 318,959,294.48

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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.