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Finding the Fourth Proportional to 49,318,699.20, 73,978,048.80 and 30,208,401.60

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Solution

The fourth proportional to 49,318,699.20, 73,978,048.80 and 30,208,401.60 is: 45,312,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,318,699.20 : 73,978,048.80 = 30,208,401.60 : x
  2. Step 2: Convert to fraction form
    49,318,699.20/73,978,048.80 = 30,208,401.60/x
  3. Step 3: Cross multiply
    49,318,699.20x = 73,978,048.80 × 30,208,401.60
  4. Step 4: Simplify right side
    49,318,699.20x = 2,234,758,607,734,798
  5. Step 5: Solve for x
    x = 2,234,758,607,734,798/49,318,699.20
  6. Step 6: Final answer
    x = 45,312,602.40

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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.