Home / 18,675,239.40-28,018,107.90-9,090,930.60

Finding the Fourth Proportional to 18,675,239.40, 28,018,107.90 and 9,090,930.60

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Solution

The fourth proportional to 18,675,239.40, 28,018,107.90 and 9,090,930.60 is: 13,638,950.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675,239.40 : 28,018,107.90 = 9,090,930.60 : x
  2. Step 2: Convert to fraction form
    18,675,239.40/28,018,107.90 = 9,090,930.60/x
  3. Step 3: Cross multiply
    18,675,239.40x = 28,018,107.90 × 9,090,930.60
  4. Step 4: Simplify right side
    18,675,239.40x = 254,710,674,462,211.72
  5. Step 5: Solve for x
    x = 254,710,674,462,211.72/18,675,239.40
  6. Step 6: Final answer
    x = 13,638,950.97

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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.