Home / 28,864,989.40-39,801,763.92-18,394,419.10

Finding the Fourth Proportional to 28,864,989.40, 39,801,763.92 and 18,394,419.10

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Solution

The fourth proportional to 28,864,989.40, 39,801,763.92 and 18,394,419.10 is: 25,363,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864,989.40 : 39,801,763.92 = 18,394,419.10 : x
  2. Step 2: Convert to fraction form
    28,864,989.40/39,801,763.92 = 18,394,419.10/x
  3. Step 3: Cross multiply
    28,864,989.40x = 39,801,763.92 × 18,394,419.10
  4. Step 4: Simplify right side
    28,864,989.40x = 732,130,326,463,739
  5. Step 5: Solve for x
    x = 732,130,326,463,739/28,864,989.40
  6. Step 6: Final answer
    x = 25,363,956.19

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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.