Home / 395,046,852.23-545,157,362.05-218,830,981.15

Finding the Fourth Proportional to 395,046,852.23, 545,157,362.05 and 218,830,981.15

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Solution

The fourth proportional to 395,046,852.23, 545,157,362.05 and 218,830,981.15 is: 301,982,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,046,852.23 : 545,157,362.05 = 218,830,981.15 : x
  2. Step 2: Convert to fraction form
    395,046,852.23/545,157,362.05 = 218,830,981.15/x
  3. Step 3: Cross multiply
    395,046,852.23x = 545,157,362.05 × 218,830,981.15
  4. Step 4: Simplify right side
    395,046,852.23x = 119,297,320,419,916,928
  5. Step 5: Solve for x
    x = 119,297,320,419,916,928/395,046,852.23
  6. Step 6: Final answer
    x = 301,982,713.56

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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.