Home / 212,544,005.70-318,816,008.55-193,396,383.30

Finding the Fourth Proportional to 212,544,005.70, 318,816,008.55 and 193,396,383.30

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Solution

The fourth proportional to 212,544,005.70, 318,816,008.55 and 193,396,383.30 is: 290,094,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,544,005.70 : 318,816,008.55 = 193,396,383.30 : x
  2. Step 2: Convert to fraction form
    212,544,005.70/318,816,008.55 = 193,396,383.30/x
  3. Step 3: Cross multiply
    212,544,005.70x = 318,816,008.55 × 193,396,383.30
  4. Step 4: Simplify right side
    212,544,005.70x = 61,657,862,991,711,880
  5. Step 5: Solve for x
    x = 61,657,862,991,711,880/212,544,005.70
  6. Step 6: Final answer
    x = 290,094,574.95

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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.