Home / 28,864,988.40-39,801,762.54-18,394,418.10

Finding the Fourth Proportional to 28,864,988.40, 39,801,762.54 and 18,394,418.10

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Solution

The fourth proportional to 28,864,988.40, 39,801,762.54 and 18,394,418.10 is: 25,363,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864,988.40 : 39,801,762.54 = 18,394,418.10 : x
  2. Step 2: Convert to fraction form
    28,864,988.40/39,801,762.54 = 18,394,418.10/x
  3. Step 3: Cross multiply
    28,864,988.40x = 39,801,762.54 × 18,394,418.10
  4. Step 4: Simplify right side
    28,864,988.40x = 732,130,261,277,678
  5. Step 5: Solve for x
    x = 732,130,261,277,678/28,864,988.40
  6. Step 6: Final answer
    x = 25,363,954.81

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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.