Home / 212,868,940.20-319,303,410.30-166,952,437.80

Finding the Fourth Proportional to 212,868,940.20, 319,303,410.30 and 166,952,437.80

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Solution

The fourth proportional to 212,868,940.20, 319,303,410.30 and 166,952,437.80 is: 250,428,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868,940.20 : 319,303,410.30 = 166,952,437.80 : x
  2. Step 2: Convert to fraction form
    212,868,940.20/319,303,410.30 = 166,952,437.80/x
  3. Step 3: Cross multiply
    212,868,940.20x = 319,303,410.30 × 166,952,437.80
  4. Step 4: Simplify right side
    212,868,940.20x = 53,308,482,747,438,632
  5. Step 5: Solve for x
    x = 53,308,482,747,438,632/212,868,940.20
  6. Step 6: Final answer
    x = 250,428,656.70

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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.