Home / 10,879,783.40-16,322,132.70-6,389,748.20

Finding the Fourth Proportional to 10,879,783.40, 16,322,132.70 and 6,389,748.20

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Solution

The fourth proportional to 10,879,783.40, 16,322,132.70 and 6,389,748.20 is: 9,586,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879,783.40 : 16,322,132.70 = 6,389,748.20 : x
  2. Step 2: Convert to fraction form
    10,879,783.40/16,322,132.70 = 6,389,748.20/x
  3. Step 3: Cross multiply
    10,879,783.40x = 16,322,132.70 × 6,389,748.20
  4. Step 4: Simplify right side
    10,879,783.40x = 104,294,318,039,986.14
  5. Step 5: Solve for x
    x = 104,294,318,039,986.14/10,879,783.40
  6. Step 6: Final answer
    x = 9,586,065.66

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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.