Home / 21,362,785.15-29,480,480.55-11,573,159.31

Finding the Fourth Proportional to 21,362,785.15, 29,480,480.55 and 11,573,159.31

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Solution

The fourth proportional to 21,362,785.15, 29,480,480.55 and 11,573,159.31 is: 15,970,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362,785.15 : 29,480,480.55 = 11,573,159.31 : x
  2. Step 2: Convert to fraction form
    21,362,785.15/29,480,480.55 = 11,573,159.31/x
  3. Step 3: Cross multiply
    21,362,785.15x = 29,480,480.55 × 11,573,159.31
  4. Step 4: Simplify right side
    21,362,785.15x = 341,182,297,940,506.44
  5. Step 5: Solve for x
    x = 341,182,297,940,506.44/21,362,785.15
  6. Step 6: Final answer
    x = 15,970,871.57

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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.