Home / 15,507,127,112.32-21,399,544,759.95-9,485,190,153.64

Finding the Fourth Proportional to 15,507,127,112.32, 21,399,544,759.95 and 9,485,190,153.64

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Solution

The fourth proportional to 15,507,127,112.32, 21,399,544,759.95 and 9,485,190,153.64 is: 13,089,384,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,127,112.32 : 21,399,544,759.95 = 9,485,190,153.64 : x
  2. Step 2: Convert to fraction form
    15,507,127,112.32/21,399,544,759.95 = 9,485,190,153.64/x
  3. Step 3: Cross multiply
    15,507,127,112.32x = 21,399,544,759.95 × 9,485,190,153.64
  4. Step 4: Simplify right side
    15,507,127,112.32x = 202,978,751,249,301,766,144
  5. Step 5: Solve for x
    x = 202,978,751,249,301,766,144/15,507,127,112.32
  6. Step 6: Final answer
    x = 13,089,384,628.06

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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.