Home / 221,959,534.80-332,939,302.20-212,889,608.40

Finding the Fourth Proportional to 221,959,534.80, 332,939,302.20 and 212,889,608.40

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Solution

The fourth proportional to 221,959,534.80, 332,939,302.20 and 212,889,608.40 is: 319,334,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,959,534.80 : 332,939,302.20 = 212,889,608.40 : x
  2. Step 2: Convert to fraction form
    221,959,534.80/332,939,302.20 = 212,889,608.40/x
  3. Step 3: Cross multiply
    221,959,534.80x = 332,939,302.20 × 212,889,608.40
  4. Step 4: Simplify right side
    221,959,534.80x = 70,879,317,666,327,256
  5. Step 5: Solve for x
    x = 70,879,317,666,327,256/221,959,534.80
  6. Step 6: Final answer
    x = 319,334,412.60

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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.