Home / 919,478,518.36-1,268,907,256.38-501,817,591.96

Finding the Fourth Proportional to 919,478,518.36, 1,268,907,256.38 and 501,817,591.96

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Solution

The fourth proportional to 919,478,518.36, 1,268,907,256.38 and 501,817,591.96 is: 692,522,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,478,518.36 : 1,268,907,256.38 = 501,817,591.96 : x
  2. Step 2: Convert to fraction form
    919,478,518.36/1,268,907,256.38 = 501,817,591.96/x
  3. Step 3: Cross multiply
    919,478,518.36x = 1,268,907,256.38 × 501,817,591.96
  4. Step 4: Simplify right side
    919,478,518.36x = 636,759,983,817,181,952
  5. Step 5: Solve for x
    x = 636,759,983,817,181,952/919,478,518.36
  6. Step 6: Final answer
    x = 692,522,958.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.