Home / 10,020,900.90-15,040,208.70-8,586,010.20

Finding the Fourth Proportional to 10,020,900.90, 15,040,208.70 and 8,586,010.20

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Solution

The fourth proportional to 10,020,900.90, 15,040,208.70 and 8,586,010.20 is: 12,886,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,900.90 : 15,040,208.70 = 8,586,010.20 : x
  2. Step 2: Convert to fraction form
    10,020,900.90/15,040,208.70 = 8,586,010.20/x
  3. Step 3: Cross multiply
    10,020,900.90x = 15,040,208.70 × 8,586,010.20
  4. Step 4: Simplify right side
    10,020,900.90x = 129,135,385,308,328.72
  5. Step 5: Solve for x
    x = 129,135,385,308,328.72/10,020,900.90
  6. Step 6: Final answer
    x = 12,886,604.37

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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.