Home / 212,711,415.86-293,783,891.46-142,975,727.84

Finding the Fourth Proportional to 212,711,415.86, 293,783,891.46 and 142,975,727.84

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Solution

The fourth proportional to 212,711,415.86, 293,783,891.46 and 142,975,727.84 is: 197,469,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,711,415.86 : 293,783,891.46 = 142,975,727.84 : x
  2. Step 2: Convert to fraction form
    212,711,415.86/293,783,891.46 = 142,975,727.84/x
  3. Step 3: Cross multiply
    212,711,415.86x = 293,783,891.46 × 142,975,727.84
  4. Step 4: Simplify right side
    212,711,415.86x = 42,003,965,709,161,056
  5. Step 5: Solve for x
    x = 42,003,965,709,161,056/212,711,415.86
  6. Step 6: Final answer
    x = 197,469,259.18

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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.