Home / 279,071,476.88-418,611,654.52-155,360,419.47

Finding the Fourth Proportional to 279,071,476.88, 418,611,654.52 and 155,360,419.47

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Solution

The fourth proportional to 279,071,476.88, 418,611,654.52 and 155,360,419.47 is: 233,043,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,071,476.88 : 418,611,654.52 = 155,360,419.47 : x
  2. Step 2: Convert to fraction form
    279,071,476.88/418,611,654.52 = 155,360,419.47/x
  3. Step 3: Cross multiply
    279,071,476.88x = 418,611,654.52 × 155,360,419.47
  4. Step 4: Simplify right side
    279,071,476.88x = 65,035,682,240,869,520
  5. Step 5: Solve for x
    x = 65,035,682,240,869,520/279,071,476.88
  6. Step 6: Final answer
    x = 233,043,100.53

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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.