Home / 7,872,891.20-11,809,336.80-7,201,044.80

Finding the Fourth Proportional to 7,872,891.20, 11,809,336.80 and 7,201,044.80

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Solution

The fourth proportional to 7,872,891.20, 11,809,336.80 and 7,201,044.80 is: 10,801,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,891.20 : 11,809,336.80 = 7,201,044.80 : x
  2. Step 2: Convert to fraction form
    7,872,891.20/11,809,336.80 = 7,201,044.80/x
  3. Step 3: Cross multiply
    7,872,891.20x = 11,809,336.80 × 7,201,044.80
  4. Step 4: Simplify right side
    7,872,891.20x = 85,039,563,355,088.64
  5. Step 5: Solve for x
    x = 85,039,563,355,088.64/7,872,891.20
  6. Step 6: Final answer
    x = 10,801,567.20

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1.5x scale

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.