Home / 12,615,977.25-18,927,157.63-3,518,075.81

Finding the Fourth Proportional to 12,615,977.25, 18,927,157.63 and 3,518,075.81

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Solution

The fourth proportional to 12,615,977.25, 18,927,157.63 and 3,518,075.81 is: 5,278,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615,977.25 : 18,927,157.63 = 3,518,075.81 : x
  2. Step 2: Convert to fraction form
    12,615,977.25/18,927,157.63 = 3,518,075.81/x
  3. Step 3: Cross multiply
    12,615,977.25x = 18,927,157.63 × 3,518,075.81
  4. Step 4: Simplify right side
    12,615,977.25x = 66,587,175,410,159.93
  5. Step 5: Solve for x
    x = 66,587,175,410,159.93/12,615,977.25
  6. Step 6: Final answer
    x = 5,278,003.76

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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.