Home / 28,095,850.80-42,142,813.91-11,911,380.12

Finding the Fourth Proportional to 28,095,850.80, 42,142,813.91 and 11,911,380.12

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Solution

The fourth proportional to 28,095,850.80, 42,142,813.91 and 11,911,380.12 is: 17,866,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095,850.80 : 42,142,813.91 = 11,911,380.12 : x
  2. Step 2: Convert to fraction form
    28,095,850.80/42,142,813.91 = 11,911,380.12/x
  3. Step 3: Cross multiply
    28,095,850.80x = 42,142,813.91 × 11,911,380.12
  4. Step 4: Simplify right side
    28,095,850.80x = 501,979,075,748,876.56
  5. Step 5: Solve for x
    x = 501,979,075,748,876.56/28,095,850.80
  6. Step 6: Final answer
    x = 17,866,662.21

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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.