Home / 12,615,975.75-18,927,155.38-3,518,074.31

Finding the Fourth Proportional to 12,615,975.75, 18,927,155.38 and 3,518,074.31

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Solution

The fourth proportional to 12,615,975.75, 18,927,155.38 and 3,518,074.31 is: 5,278,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615,975.75 : 18,927,155.38 = 3,518,074.31 : x
  2. Step 2: Convert to fraction form
    12,615,975.75/18,927,155.38 = 3,518,074.31/x
  3. Step 3: Cross multiply
    12,615,975.75x = 18,927,155.38 × 3,518,074.31
  4. Step 4: Simplify right side
    12,615,975.75x = 66,587,139,103,756.29
  5. Step 5: Solve for x
    x = 66,587,139,103,756.29/12,615,975.75
  6. Step 6: Final answer
    x = 5,278,001.52

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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.