Home / 38,922,386.90-53,714,015.19-21,519,855.63

Finding the Fourth Proportional to 38,922,386.90, 53,714,015.19 and 21,519,855.63

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Solution

The fourth proportional to 38,922,386.90, 53,714,015.19 and 21,519,855.63 is: 29,698,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922,386.90 : 53,714,015.19 = 21,519,855.63 : x
  2. Step 2: Convert to fraction form
    38,922,386.90/53,714,015.19 = 21,519,855.63/x
  3. Step 3: Cross multiply
    38,922,386.90x = 53,714,015.19 × 21,519,855.63
  4. Step 4: Simplify right side
    38,922,386.90x = 1,155,917,852,196,427
  5. Step 5: Solve for x
    x = 1,155,917,852,196,427/38,922,386.90
  6. Step 6: Final answer
    x = 29,698,020.71

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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.