Home / 7,128,703.20-10,693,054.80-2,642,728.80

Finding the Fourth Proportional to 7,128,703.20, 10,693,054.80 and 2,642,728.80

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Solution

The fourth proportional to 7,128,703.20, 10,693,054.80 and 2,642,728.80 is: 3,964,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,703.20 : 10,693,054.80 = 2,642,728.80 : x
  2. Step 2: Convert to fraction form
    7,128,703.20/10,693,054.80 = 2,642,728.80/x
  3. Step 3: Cross multiply
    7,128,703.20x = 10,693,054.80 × 2,642,728.80
  4. Step 4: Simplify right side
    7,128,703.20x = 28,258,843,879,938.24
  5. Step 5: Solve for x
    x = 28,258,843,879,938.24/7,128,703.20
  6. Step 6: Final answer
    x = 3,964,093.20

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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.