Home / 30,619,608.30-45,929,412.45-21,053,670.30

Finding the Fourth Proportional to 30,619,608.30, 45,929,412.45 and 21,053,670.30

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Solution

The fourth proportional to 30,619,608.30, 45,929,412.45 and 21,053,670.30 is: 31,580,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619,608.30 : 45,929,412.45 = 21,053,670.30 : x
  2. Step 2: Convert to fraction form
    30,619,608.30/45,929,412.45 = 21,053,670.30/x
  3. Step 3: Cross multiply
    30,619,608.30x = 45,929,412.45 × 21,053,670.30
  4. Step 4: Simplify right side
    30,619,608.30x = 966,982,706,795,015.38
  5. Step 5: Solve for x
    x = 966,982,706,795,015.38/30,619,608.30
  6. Step 6: Final answer
    x = 31,580,505.45

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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.