Home / 28,008,961.57-42,013,442.36-8,853,172.21

Finding the Fourth Proportional to 28,008,961.57, 42,013,442.36 and 8,853,172.21

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Solution

The fourth proportional to 28,008,961.57, 42,013,442.36 and 8,853,172.21 is: 13,279,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008,961.57 : 42,013,442.36 = 8,853,172.21 : x
  2. Step 2: Convert to fraction form
    28,008,961.57/42,013,442.36 = 8,853,172.21/x
  3. Step 3: Cross multiply
    28,008,961.57x = 42,013,442.36 × 8,853,172.21
  4. Step 4: Simplify right side
    28,008,961.57x = 371,952,240,347,988.88
  5. Step 5: Solve for x
    x = 371,952,240,347,988.88/28,008,961.57
  6. Step 6: Final answer
    x = 13,279,758.32

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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.