Home / 28,204,511.04-38,907,900.72-18,420,682.23

Finding the Fourth Proportional to 28,204,511.04, 38,907,900.72 and 18,420,682.23

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Solution

The fourth proportional to 28,204,511.04, 38,907,900.72 and 18,420,682.23 is: 25,411,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,511.04 : 38,907,900.72 = 18,420,682.23 : x
  2. Step 2: Convert to fraction form
    28,204,511.04/38,907,900.72 = 18,420,682.23/x
  3. Step 3: Cross multiply
    28,204,511.04x = 38,907,900.72 × 18,420,682.23
  4. Step 4: Simplify right side
    28,204,511.04x = 716,710,075,399,508.25
  5. Step 5: Solve for x
    x = 716,710,075,399,508.25/28,204,511.04
  6. Step 6: Final answer
    x = 25,411,185.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.