Home / 395,216,771.05-545,402,346.33-219,007,709.74

Finding the Fourth Proportional to 395,216,771.05, 545,402,346.33 and 219,007,709.74

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Solution

The fourth proportional to 395,216,771.05, 545,402,346.33 and 219,007,709.74 is: 302,232,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,216,771.05 : 545,402,346.33 = 219,007,709.74 : x
  2. Step 2: Convert to fraction form
    395,216,771.05/545,402,346.33 = 219,007,709.74/x
  3. Step 3: Cross multiply
    395,216,771.05x = 545,402,346.33 × 219,007,709.74
  4. Step 4: Simplify right side
    395,216,771.05x = 119,447,318,756,555,616
  5. Step 5: Solve for x
    x = 119,447,318,756,555,616/395,216,771.05
  6. Step 6: Final answer
    x = 302,232,413.97

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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.