Home / 815,826,506.31-1,223,738,230.08-255,631,223.76

Finding the Fourth Proportional to 815,826,506.31, 1,223,738,230.08 and 255,631,223.76

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Solution

The fourth proportional to 815,826,506.31, 1,223,738,230.08 and 255,631,223.76 is: 383,446,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,826,506.31 : 1,223,738,230.08 = 255,631,223.76 : x
  2. Step 2: Convert to fraction form
    815,826,506.31/1,223,738,230.08 = 255,631,223.76/x
  3. Step 3: Cross multiply
    815,826,506.31x = 1,223,738,230.08 × 255,631,223.76
  4. Step 4: Simplify right side
    815,826,506.31x = 312,825,701,317,246,784
  5. Step 5: Solve for x
    x = 312,825,701,317,246,784/815,826,506.31
  6. Step 6: Final answer
    x = 383,446,356.42

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Double scale
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1.5x scale

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.