Home / 212,869,315.70-319,303,973.55-166,952,813.30

Finding the Fourth Proportional to 212,869,315.70, 319,303,973.55 and 166,952,813.30

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Solution

The fourth proportional to 212,869,315.70, 319,303,973.55 and 166,952,813.30 is: 250,429,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,869,315.70 : 319,303,973.55 = 166,952,813.30 : x
  2. Step 2: Convert to fraction form
    212,869,315.70/319,303,973.55 = 166,952,813.30/x
  3. Step 3: Cross multiply
    212,869,315.70x = 319,303,973.55 × 166,952,813.30
  4. Step 4: Simplify right side
    212,869,315.70x = 53,308,696,682,041,296
  5. Step 5: Solve for x
    x = 53,308,696,682,041,296/212,869,315.70
  6. Step 6: Final answer
    x = 250,429,219.95

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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.