Home / 872,598,336.32-1,308,800,815.20-312,337,789.76

Finding the Fourth Proportional to 872,598,336.32, 1,308,800,815.20 and 312,337,789.76

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Solution

The fourth proportional to 872,598,336.32, 1,308,800,815.20 and 312,337,789.76 is: 468,472,075.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,598,336.32 : 1,308,800,815.20 = 312,337,789.76 : x
  2. Step 2: Convert to fraction form
    872,598,336.32/1,308,800,815.20 = 312,337,789.76/x
  3. Step 3: Cross multiply
    872,598,336.32x = 1,308,800,815.20 × 312,337,789.76
  4. Step 4: Simplify right side
    872,598,336.32x = 408,787,953,855,654,208
  5. Step 5: Solve for x
    x = 408,787,953,855,654,208/872,598,336.32
  6. Step 6: Final answer
    x = 468,472,075.69

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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.