Home / 28,072,510.20-42,124,511.70-11,895,708.60

Finding the Fourth Proportional to 28,072,510.20, 42,124,511.70 and 11,895,708.60

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Solution

The fourth proportional to 28,072,510.20, 42,124,511.70 and 11,895,708.60 is: 17,850,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,510.20 : 42,124,511.70 = 11,895,708.60 : x
  2. Step 2: Convert to fraction form
    28,072,510.20/42,124,511.70 = 11,895,708.60/x
  3. Step 3: Cross multiply
    28,072,510.20x = 42,124,511.70 × 11,895,708.60
  4. Step 4: Simplify right side
    28,072,510.20x = 501,100,916,100,490.62
  5. Step 5: Solve for x
    x = 501,100,916,100,490.62/28,072,510.20
  6. Step 6: Final answer
    x = 17,850,235.43

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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.