Home / 1,210,157,508.87-1,815,764,258.06-423,775,573.31

Finding the Fourth Proportional to 1,210,157,508.87, 1,815,764,258.06 and 423,775,573.31

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Solution

The fourth proportional to 1,210,157,508.87, 1,815,764,258.06 and 423,775,573.31 is: 635,848,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,508.87 : 1,815,764,258.06 = 423,775,573.31 : x
  2. Step 2: Convert to fraction form
    1,210,157,508.87/1,815,764,258.06 = 423,775,573.31/x
  3. Step 3: Cross multiply
    1,210,157,508.87x = 1,815,764,258.06 × 423,775,573.31
  4. Step 4: Simplify right side
    1,210,157,508.87x = 769,476,539,455,183,232
  5. Step 5: Solve for x
    x = 769,476,539,455,183,232/1,210,157,508.87
  6. Step 6: Final answer
    x = 635,848,254.31

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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.