Home / 1,210,157,563.38-1,815,764,339.86-423,775,627.80

Finding the Fourth Proportional to 1,210,157,563.38, 1,815,764,339.86 and 423,775,627.80

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Solution

The fourth proportional to 1,210,157,563.38, 1,815,764,339.86 and 423,775,627.80 is: 635,848,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,563.38 : 1,815,764,339.86 = 423,775,627.80 : x
  2. Step 2: Convert to fraction form
    1,210,157,563.38/1,815,764,339.86 = 423,775,627.80/x
  3. Step 3: Cross multiply
    1,210,157,563.38x = 1,815,764,339.86 × 423,775,627.80
  4. Step 4: Simplify right side
    1,210,157,563.38x = 769,476,673,061,024,000
  5. Step 5: Solve for x
    x = 769,476,673,061,024,000/1,210,157,563.38
  6. Step 6: Final answer
    x = 635,848,336.07

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Double scale
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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.