Home / 20,724,986.29-31,072,126.68-9,932,010.07

Finding the Fourth Proportional to 20,724,986.29, 31,072,126.68 and 9,932,010.07

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Solution

The fourth proportional to 20,724,986.29, 31,072,126.68 and 9,932,010.07 is: 14,890,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,986.29 : 31,072,126.68 = 9,932,010.07 : x
  2. Step 2: Convert to fraction form
    20,724,986.29/31,072,126.68 = 9,932,010.07/x
  3. Step 3: Cross multiply
    20,724,986.29x = 31,072,126.68 × 9,932,010.07
  4. Step 4: Simplify right side
    20,724,986.29x = 308,608,675,082,075.69
  5. Step 5: Solve for x
    x = 308,608,675,082,075.69/20,724,986.29
  6. Step 6: Final answer
    x = 14,890,657.62

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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.