Home / 407,084,924.68-561,776,770.88-221,445,497.50

Finding the Fourth Proportional to 407,084,924.68, 561,776,770.88 and 221,445,497.50

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Solution

The fourth proportional to 407,084,924.68, 561,776,770.88 and 221,445,497.50 is: 305,594,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,084,924.68 : 561,776,770.88 = 221,445,497.50 : x
  2. Step 2: Convert to fraction form
    407,084,924.68/561,776,770.88 = 221,445,497.50/x
  3. Step 3: Cross multiply
    407,084,924.68x = 561,776,770.88 × 221,445,497.50
  4. Step 4: Simplify right side
    407,084,924.68x = 124,402,936,511,465,104
  5. Step 5: Solve for x
    x = 124,402,936,511,465,104/407,084,924.68
  6. Step 6: Final answer
    x = 305,594,555.26

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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.