Home / 139,970,072.80-209,955,109.20-130,404,134.80

Finding the Fourth Proportional to 139,970,072.80, 209,955,109.20 and 130,404,134.80

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Solution

The fourth proportional to 139,970,072.80, 209,955,109.20 and 130,404,134.80 is: 195,606,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,970,072.80 : 209,955,109.20 = 130,404,134.80 : x
  2. Step 2: Convert to fraction form
    139,970,072.80/209,955,109.20 = 130,404,134.80/x
  3. Step 3: Cross multiply
    139,970,072.80x = 209,955,109.20 × 130,404,134.80
  4. Step 4: Simplify right side
    139,970,072.80x = 27,379,014,362,065,516
  5. Step 5: Solve for x
    x = 27,379,014,362,065,516/139,970,072.80
  6. Step 6: Final answer
    x = 195,606,202.20

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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.