Home / 221,734,268.40-305,995,271.22-122,621,686.50

Finding the Fourth Proportional to 221,734,268.40, 305,995,271.22 and 122,621,686.50

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Solution

The fourth proportional to 221,734,268.40, 305,995,271.22 and 122,621,686.50 is: 169,219,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,734,268.40 : 305,995,271.22 = 122,621,686.50 : x
  2. Step 2: Convert to fraction form
    221,734,268.40/305,995,271.22 = 122,621,686.50/x
  3. Step 3: Cross multiply
    221,734,268.40x = 305,995,271.22 × 122,621,686.50
  4. Step 4: Simplify right side
    221,734,268.40x = 37,521,656,218,021,320
  5. Step 5: Solve for x
    x = 37,521,656,218,021,320/221,734,268.40
  6. Step 6: Final answer
    x = 169,219,022.79

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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.