Home / 28,089,079.20-42,133,618.80-21,711,787.20

Finding the Fourth Proportional to 28,089,079.20, 42,133,618.80 and 21,711,787.20

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Solution

The fourth proportional to 28,089,079.20, 42,133,618.80 and 21,711,787.20 is: 32,567,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089,079.20 : 42,133,618.80 = 21,711,787.20 : x
  2. Step 2: Convert to fraction form
    28,089,079.20/42,133,618.80 = 21,711,787.20/x
  3. Step 3: Cross multiply
    28,089,079.20x = 42,133,618.80 × 21,711,787.20
  4. Step 4: Simplify right side
    28,089,079.20x = 914,796,165,351,519.25
  5. Step 5: Solve for x
    x = 914,796,165,351,519.25/28,089,079.20
  6. Step 6: Final answer
    x = 32,567,680.80

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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.