Home / 81,964,391.48-122,911,590.73-47,444,620.51

Finding the Fourth Proportional to 81,964,391.48, 122,911,590.73 and 47,444,620.51

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Solution

The fourth proportional to 81,964,391.48, 122,911,590.73 and 47,444,620.51 is: 71,146,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,964,391.48 : 122,911,590.73 = 47,444,620.51 : x
  2. Step 2: Convert to fraction form
    81,964,391.48/122,911,590.73 = 47,444,620.51/x
  3. Step 3: Cross multiply
    81,964,391.48x = 122,911,590.73 × 47,444,620.51
  4. Step 4: Simplify right side
    81,964,391.48x = 5,831,493,778,465,284
  5. Step 5: Solve for x
    x = 5,831,493,778,465,284/81,964,391.48
  6. Step 6: Final answer
    x = 71,146,673.25

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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.