Home / 9,720,821.80-14,581,232.70-8,161,928.20

Finding the Fourth Proportional to 9,720,821.80, 14,581,232.70 and 8,161,928.20

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Solution

The fourth proportional to 9,720,821.80, 14,581,232.70 and 8,161,928.20 is: 12,242,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720,821.80 : 14,581,232.70 = 8,161,928.20 : x
  2. Step 2: Convert to fraction form
    9,720,821.80/14,581,232.70 = 8,161,928.20/x
  3. Step 3: Cross multiply
    9,720,821.80x = 14,581,232.70 × 8,161,928.20
  4. Step 4: Simplify right side
    9,720,821.80x = 119,010,974,364,892.14
  5. Step 5: Solve for x
    x = 119,010,974,364,892.14/9,720,821.80
  6. Step 6: Final answer
    x = 12,242,892.30

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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.