Home / 1,210,157,507.87-1,815,764,256.56-423,775,572.31

Finding the Fourth Proportional to 1,210,157,507.87, 1,815,764,256.56 and 423,775,572.31

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Solution

The fourth proportional to 1,210,157,507.87, 1,815,764,256.56 and 423,775,572.31 is: 635,848,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,507.87 : 1,815,764,256.56 = 423,775,572.31 : x
  2. Step 2: Convert to fraction form
    1,210,157,507.87/1,815,764,256.56 = 423,775,572.31/x
  3. Step 3: Cross multiply
    1,210,157,507.87x = 1,815,764,256.56 × 423,775,572.31
  4. Step 4: Simplify right side
    1,210,157,507.87x = 769,476,536,994,676,864
  5. Step 5: Solve for x
    x = 769,476,536,994,676,864/1,210,157,507.87
  6. Step 6: Final answer
    x = 635,848,252.80

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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.