Home / 18,858,356.46-28,301,615.73-12,778,669.26

Finding the Fourth Proportional to 18,858,356.46, 28,301,615.73 and 12,778,669.26

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Solution

The fourth proportional to 18,858,356.46, 28,301,615.73 and 12,778,669.26 is: 19,177,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858,356.46 : 28,301,615.73 = 12,778,669.26 : x
  2. Step 2: Convert to fraction form
    18,858,356.46/28,301,615.73 = 12,778,669.26/x
  3. Step 3: Cross multiply
    18,858,356.46x = 28,301,615.73 × 12,778,669.26
  4. Step 4: Simplify right side
    18,858,356.46x = 361,656,986,937,283.44
  5. Step 5: Solve for x
    x = 361,656,986,937,283.44/18,858,356.46
  6. Step 6: Final answer
    x = 19,177,545.39

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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.