Home / 78,749,103,579.30-118,128,921,781.59-27,691,300,445.22

Finding the Fourth Proportional to 78,749,103,579.30, 118,128,921,781.59 and 27,691,300,445.22

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Solution

The fourth proportional to 78,749,103,579.30, 118,128,921,781.59 and 27,691,300,445.22 is: 41,538,802,546.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,749,103,579.30 : 118,128,921,781.59 = 27,691,300,445.22 : x
  2. Step 2: Convert to fraction form
    78,749,103,579.30/118,128,921,781.59 = 27,691,300,445.22/x
  3. Step 3: Cross multiply
    78,749,103,579.30x = 118,128,921,781.59 × 27,691,300,445.22
  4. Step 4: Simplify right side
    78,749,103,579.30x = 3,271,143,464,323,901,816,832
  5. Step 5: Solve for x
    x = 3,271,143,464,323,901,816,832/78,749,103,579.30
  6. Step 6: Final answer
    x = 41,538,802,546.87

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1.5x scale

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.