Home / 78,968,140,945.88-118,448,039,601.96-25,902,184,030.52

Finding the Fourth Proportional to 78,968,140,945.88, 118,448,039,601.96 and 25,902,184,030.52

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Solution

The fourth proportional to 78,968,140,945.88, 118,448,039,601.96 and 25,902,184,030.52 is: 38,851,907,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968,140,945.88 : 118,448,039,601.96 = 25,902,184,030.52 : x
  2. Step 2: Convert to fraction form
    78,968,140,945.88/118,448,039,601.96 = 25,902,184,030.52/x
  3. Step 3: Cross multiply
    78,968,140,945.88x = 118,448,039,601.96 × 25,902,184,030.52
  4. Step 4: Simplify right side
    78,968,140,945.88x = 3,068,062,919,824,289,300,480
  5. Step 5: Solve for x
    x = 3,068,062,919,824,289,300,480/78,968,140,945.88
  6. Step 6: Final answer
    x = 38,851,907,656.37

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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.