Home / 28,219,137.70-42,328,706.55-9,051,832.30

Finding the Fourth Proportional to 28,219,137.70, 42,328,706.55 and 9,051,832.30

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Solution

The fourth proportional to 28,219,137.70, 42,328,706.55 and 9,051,832.30 is: 13,577,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219,137.70 : 42,328,706.55 = 9,051,832.30 : x
  2. Step 2: Convert to fraction form
    28,219,137.70/42,328,706.55 = 9,051,832.30/x
  3. Step 3: Cross multiply
    28,219,137.70x = 42,328,706.55 × 9,051,832.30
  4. Step 4: Simplify right side
    28,219,137.70x = 383,152,353,166,511.56
  5. Step 5: Solve for x
    x = 383,152,353,166,511.56/28,219,137.70
  6. Step 6: Final answer
    x = 13,577,748.45

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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.