Home / 212,809,368.54-319,223,566.24-65,246,311.20

Finding the Fourth Proportional to 212,809,368.54, 319,223,566.24 and 65,246,311.20

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Solution

The fourth proportional to 212,809,368.54, 319,223,566.24 and 65,246,311.20 is: 97,872,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,809,368.54 : 319,223,566.24 = 65,246,311.20 : x
  2. Step 2: Convert to fraction form
    212,809,368.54/319,223,566.24 = 65,246,311.20/x
  3. Step 3: Cross multiply
    212,809,368.54x = 319,223,566.24 × 65,246,311.20
  4. Step 4: Simplify right side
    212,809,368.54x = 20,828,160,145,268,856
  5. Step 5: Solve for x
    x = 20,828,160,145,268,856/212,809,368.54
  6. Step 6: Final answer
    x = 97,872,383.57

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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.