Home / 355,758,110.40-490,941,101.34-196,973,019.84

Finding the Fourth Proportional to 355,758,110.40, 490,941,101.34 and 196,973,019.84

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Solution

The fourth proportional to 355,758,110.40, 490,941,101.34 and 196,973,019.84 is: 271,819,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,758,110.40 : 490,941,101.34 = 196,973,019.84 : x
  2. Step 2: Convert to fraction form
    355,758,110.40/490,941,101.34 = 196,973,019.84/x
  3. Step 3: Cross multiply
    355,758,110.40x = 490,941,101.34 × 196,973,019.84
  4. Step 4: Simplify right side
    355,758,110.40x = 96,702,151,294,515,264
  5. Step 5: Solve for x
    x = 96,702,151,294,515,264/355,758,110.40
  6. Step 6: Final answer
    x = 271,819,948.63

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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.