Home / 858,793,923.66-1,288,190,688.66-245,378,156.70

Finding the Fourth Proportional to 858,793,923.66, 1,288,190,688.66 and 245,378,156.70

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Solution

The fourth proportional to 858,793,923.66, 1,288,190,688.66 and 245,378,156.70 is: 368,067,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,793,923.66 : 1,288,190,688.66 = 245,378,156.70 : x
  2. Step 2: Convert to fraction form
    858,793,923.66/1,288,190,688.66 = 245,378,156.70/x
  3. Step 3: Cross multiply
    858,793,923.66x = 1,288,190,688.66 × 245,378,156.70
  4. Step 4: Simplify right side
    858,793,923.66x = 316,093,856,661,494,400
  5. Step 5: Solve for x
    x = 316,093,856,661,494,400/858,793,923.66
  6. Step 6: Final answer
    x = 368,067,178.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.