Home / 12,631,718,078.12-18,958,461,028.86-8,757,045,520.04

Finding the Fourth Proportional to 12,631,718,078.12, 18,958,461,028.86 and 8,757,045,520.04

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Solution

The fourth proportional to 12,631,718,078.12, 18,958,461,028.86 and 8,757,045,520.04 is: 13,143,113,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,718,078.12 : 18,958,461,028.86 = 8,757,045,520.04 : x
  2. Step 2: Convert to fraction form
    12,631,718,078.12/18,958,461,028.86 = 8,757,045,520.04/x
  3. Step 3: Cross multiply
    12,631,718,078.12x = 18,958,461,028.86 × 8,757,045,520.04
  4. Step 4: Simplify right side
    12,631,718,078.12x = 166,020,106,219,631,411,200
  5. Step 5: Solve for x
    x = 166,020,106,219,631,411,200/12,631,718,078.12
  6. Step 6: Final answer
    x = 13,143,113,643.99

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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.