Home / 212,838,653.20-318,880,066.20-199,233,763.60

Finding the Fourth Proportional to 212,838,653.20, 318,880,066.20 and 199,233,763.60

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Solution

The fourth proportional to 212,838,653.20, 318,880,066.20 and 199,233,763.60 is: 298,496,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,838,653.20 : 318,880,066.20 = 199,233,763.60 : x
  2. Step 2: Convert to fraction form
    212,838,653.20/318,880,066.20 = 199,233,763.60/x
  3. Step 3: Cross multiply
    212,838,653.20x = 318,880,066.20 × 199,233,763.60
  4. Step 4: Simplify right side
    212,838,653.20x = 63,531,675,726,043,144
  5. Step 5: Solve for x
    x = 63,531,675,726,043,144/212,838,653.20
  6. Step 6: Final answer
    x = 298,496,888.47

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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.