Home / 155,876,379,779.49-215,109,395,309.25-84,591,009,803.49

Finding the Fourth Proportional to 155,876,379,779.49, 215,109,395,309.25 and 84,591,009,803.49

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Solution

The fourth proportional to 155,876,379,779.49, 215,109,395,309.25 and 84,591,009,803.49 is: 116,735,588,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,876,379,779.49 : 215,109,395,309.25 = 84,591,009,803.49 : x
  2. Step 2: Convert to fraction form
    155,876,379,779.49/215,109,395,309.25 = 84,591,009,803.49/x
  3. Step 3: Cross multiply
    155,876,379,779.49x = 215,109,395,309.25 × 84,591,009,803.49
  4. Step 4: Simplify right side
    155,876,379,779.49x = 18,196,320,967,427,574,726,656
  5. Step 5: Solve for x
    x = 18,196,320,967,427,574,726,656/155,876,379,779.49
  6. Step 6: Final answer
    x = 116,735,588,760.59

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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.