Home / 419,163,239.08-625,797,628.61-320,277,421.72

Finding the Fourth Proportional to 419,163,239.08, 625,797,628.61 and 320,277,421.72

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Solution

The fourth proportional to 419,163,239.08, 625,797,628.61 and 320,277,421.72 is: 478,164,190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,163,239.08 : 625,797,628.61 = 320,277,421.72 : x
  2. Step 2: Convert to fraction form
    419,163,239.08/625,797,628.61 = 320,277,421.72/x
  3. Step 3: Cross multiply
    419,163,239.08x = 625,797,628.61 × 320,277,421.72
  4. Step 4: Simplify right side
    419,163,239.08x = 200,428,851,009,700,928
  5. Step 5: Solve for x
    x = 200,428,851,009,700,928/419,163,239.08
  6. Step 6: Final answer
    x = 478,164,190.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.