Home / 139,969,346.80-209,954,020.20-49,060,130.80

Finding the Fourth Proportional to 139,969,346.80, 209,954,020.20 and 49,060,130.80

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Solution

The fourth proportional to 139,969,346.80, 209,954,020.20 and 49,060,130.80 is: 73,590,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,346.80 : 209,954,020.20 = 49,060,130.80 : x
  2. Step 2: Convert to fraction form
    139,969,346.80/209,954,020.20 = 49,060,130.80/x
  3. Step 3: Cross multiply
    139,969,346.80x = 209,954,020.20 × 49,060,130.80
  4. Step 4: Simplify right side
    139,969,346.80x = 10,300,371,692,997,840
  5. Step 5: Solve for x
    x = 10,300,371,692,997,840/139,969,346.80
  6. Step 6: Final answer
    x = 73,590,196.20

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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.