Home / 7,828,405,399.20-10,803,201,214.32-4,308,140,215.20

Finding the Fourth Proportional to 7,828,405,399.20, 10,803,201,214.32 and 4,308,140,215.20

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Solution

The fourth proportional to 7,828,405,399.20, 10,803,201,214.32 and 4,308,140,215.20 is: 5,945,234,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828,405,399.20 : 10,803,201,214.32 = 4,308,140,215.20 : x
  2. Step 2: Convert to fraction form
    7,828,405,399.20/10,803,201,214.32 = 4,308,140,215.20/x
  3. Step 3: Cross multiply
    7,828,405,399.20x = 10,803,201,214.32 × 4,308,140,215.20
  4. Step 4: Simplify right side
    7,828,405,399.20x = 46,541,705,604,309,458,944
  5. Step 5: Solve for x
    x = 46,541,705,604,309,458,944/7,828,405,399.20
  6. Step 6: Final answer
    x = 5,945,234,467.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.