Home / 21,208,435.60-31,782,998.55-11,472,030.16

Finding the Fourth Proportional to 21,208,435.60, 31,782,998.55 and 11,472,030.16

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Solution

The fourth proportional to 21,208,435.60, 31,782,998.55 and 11,472,030.16 is: 17,192,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,435.60 : 31,782,998.55 = 11,472,030.16 : x
  2. Step 2: Convert to fraction form
    21,208,435.60/31,782,998.55 = 11,472,030.16/x
  3. Step 3: Cross multiply
    21,208,435.60x = 31,782,998.55 × 11,472,030.16
  4. Step 4: Simplify right side
    21,208,435.60x = 364,615,517,940,836.31
  5. Step 5: Solve for x
    x = 364,615,517,940,836.31/21,208,435.60
  6. Step 6: Final answer
    x = 17,192,004.39

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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.