Home / 1,210,157,508.36-1,815,764,257.31-423,775,572.81

Finding the Fourth Proportional to 1,210,157,508.36, 1,815,764,257.31 and 423,775,572.81

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Solution

The fourth proportional to 1,210,157,508.36, 1,815,764,257.31 and 423,775,572.81 is: 635,848,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,508.36 : 1,815,764,257.31 = 423,775,572.81 : x
  2. Step 2: Convert to fraction form
    1,210,157,508.36/1,815,764,257.31 = 423,775,572.81/x
  3. Step 3: Cross multiply
    1,210,157,508.36x = 1,815,764,257.31 × 423,775,572.81
  4. Step 4: Simplify right side
    1,210,157,508.36x = 769,476,538,229,469,440
  5. Step 5: Solve for x
    x = 769,476,538,229,469,440/1,210,157,508.36
  6. Step 6: Final answer
    x = 635,848,253.57

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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.