Home / 28,420,492.77-42,612,409.31-11,150,439.03

Finding the Fourth Proportional to 28,420,492.77, 42,612,409.31 and 11,150,439.03

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Solution

The fourth proportional to 28,420,492.77, 42,612,409.31 and 11,150,439.03 is: 16,718,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,492.77 : 42,612,409.31 = 11,150,439.03 : x
  2. Step 2: Convert to fraction form
    28,420,492.77/42,612,409.31 = 11,150,439.03/x
  3. Step 3: Cross multiply
    28,420,492.77x = 42,612,409.31 × 11,150,439.03
  4. Step 4: Simplify right side
    28,420,492.77x = 475,147,071,876,807.12
  5. Step 5: Solve for x
    x = 475,147,071,876,807.12/28,420,492.77
  6. Step 6: Final answer
    x = 16,718,467.05

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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.