Home / 139,968,509.55-209,952,764.33-68,304,893.55

Finding the Fourth Proportional to 139,968,509.55, 209,952,764.33 and 68,304,893.55

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Solution

The fourth proportional to 139,968,509.55, 209,952,764.33 and 68,304,893.55 is: 102,457,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,509.55 : 209,952,764.33 = 68,304,893.55 : x
  2. Step 2: Convert to fraction form
    139,968,509.55/209,952,764.33 = 68,304,893.55/x
  3. Step 3: Cross multiply
    139,968,509.55x = 209,952,764.33 × 68,304,893.55
  4. Step 4: Simplify right side
    139,968,509.55x = 14,340,801,217,747,362
  5. Step 5: Solve for x
    x = 14,340,801,217,747,362/139,968,509.55
  6. Step 6: Final answer
    x = 102,457,340.33

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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.