Home / 43,579,429.60-65,383,141.20-19,308,978.40

Finding the Fourth Proportional to 43,579,429.60, 65,383,141.20 and 19,308,978.40

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Solution

The fourth proportional to 43,579,429.60, 65,383,141.20 and 19,308,978.40 is: 28,969,669.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,579,429.60 : 65,383,141.20 = 19,308,978.40 : x
  2. Step 2: Convert to fraction form
    43,579,429.60/65,383,141.20 = 19,308,978.40/x
  3. Step 3: Cross multiply
    43,579,429.60x = 65,383,141.20 × 19,308,978.40
  4. Step 4: Simplify right side
    43,579,429.60x = 1,262,481,661,154,950
  5. Step 5: Solve for x
    x = 1,262,481,661,154,950/43,579,429.60
  6. Step 6: Final answer
    x = 28,969,669.24

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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.