Home / 418,419,055.96-578,214,650.73-313,815,523.93

Finding the Fourth Proportional to 418,419,055.96, 578,214,650.73 and 313,815,523.93

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Solution

The fourth proportional to 418,419,055.96, 578,214,650.73 and 313,815,523.93 is: 433,662,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,419,055.96 : 578,214,650.73 = 313,815,523.93 : x
  2. Step 2: Convert to fraction form
    418,419,055.96/578,214,650.73 = 313,815,523.93/x
  3. Step 3: Cross multiply
    418,419,055.96x = 578,214,650.73 × 313,815,523.93
  4. Step 4: Simplify right side
    418,419,055.96x = 181,452,733,562,128,832
  5. Step 5: Solve for x
    x = 181,452,733,562,128,832/418,419,055.96
  6. Step 6: Final answer
    x = 433,662,690.50

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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.