Home / 221,733,705.51-305,994,494.88-122,621,120.55

Finding the Fourth Proportional to 221,733,705.51, 305,994,494.88 and 122,621,120.55

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Solution

The fourth proportional to 221,733,705.51, 305,994,494.88 and 122,621,120.55 is: 169,218,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,733,705.51 : 305,994,494.88 = 122,621,120.55 : x
  2. Step 2: Convert to fraction form
    221,733,705.51/305,994,494.88 = 122,621,120.55/x
  3. Step 3: Cross multiply
    221,733,705.51x = 305,994,494.88 × 122,621,120.55
  4. Step 4: Simplify right side
    221,733,705.51x = 37,521,387,844,316,840
  5. Step 5: Solve for x
    x = 37,521,387,844,316,840/221,733,705.51
  6. Step 6: Final answer
    x = 169,218,242.03

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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.