Home / 12,249,142.62-18,362,356.11-5,422,075.86

Finding the Fourth Proportional to 12,249,142.62, 18,362,356.11 and 5,422,075.86

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Solution

The fourth proportional to 12,249,142.62, 18,362,356.11 and 5,422,075.86 is: 8,128,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249,142.62 : 18,362,356.11 = 5,422,075.86 : x
  2. Step 2: Convert to fraction form
    12,249,142.62/18,362,356.11 = 5,422,075.86/x
  3. Step 3: Cross multiply
    12,249,142.62x = 18,362,356.11 × 5,422,075.86
  4. Step 4: Simplify right side
    12,249,142.62x = 99,562,087,796,754.50
  5. Step 5: Solve for x
    x = 99,562,087,796,754.50/12,249,142.62
  6. Step 6: Final answer
    x = 8,128,086.26

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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.