Home / 139,968,560.20-209,952,840.30-120,820,937.80

Finding the Fourth Proportional to 139,968,560.20, 209,952,840.30 and 120,820,937.80

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Solution

The fourth proportional to 139,968,560.20, 209,952,840.30 and 120,820,937.80 is: 181,231,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,560.20 : 209,952,840.30 = 120,820,937.80 : x
  2. Step 2: Convert to fraction form
    139,968,560.20/209,952,840.30 = 120,820,937.80/x
  3. Step 3: Cross multiply
    139,968,560.20x = 209,952,840.30 × 120,820,937.80
  4. Step 4: Simplify right side
    139,968,560.20x = 25,366,699,058,819,636
  5. Step 5: Solve for x
    x = 25,366,699,058,819,636/139,968,560.20
  6. Step 6: Final answer
    x = 181,231,406.70

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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.