Home / 139,143,391.20-208,715,086.80-48,276,165.60

Finding the Fourth Proportional to 139,143,391.20, 208,715,086.80 and 48,276,165.60

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Solution

The fourth proportional to 139,143,391.20, 208,715,086.80 and 48,276,165.60 is: 72,414,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,143,391.20 : 208,715,086.80 = 48,276,165.60 : x
  2. Step 2: Convert to fraction form
    139,143,391.20/208,715,086.80 = 48,276,165.60/x
  3. Step 3: Cross multiply
    139,143,391.20x = 208,715,086.80 × 48,276,165.60
  4. Step 4: Simplify right side
    139,143,391.20x = 10,075,964,093,575,174
  5. Step 5: Solve for x
    x = 10,075,964,093,575,174/139,143,391.20
  6. Step 6: Final answer
    x = 72,414,248.40

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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.