Home / 137,179,771.85-189,308,292.53-74,455,892.34

Finding the Fourth Proportional to 137,179,771.85, 189,308,292.53 and 74,455,892.34

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Solution

The fourth proportional to 137,179,771.85, 189,308,292.53 and 74,455,892.34 is: 102,749,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179,771.85 : 189,308,292.53 = 74,455,892.34 : x
  2. Step 2: Convert to fraction form
    137,179,771.85/189,308,292.53 = 74,455,892.34/x
  3. Step 3: Cross multiply
    137,179,771.85x = 189,308,292.53 × 74,455,892.34
  4. Step 4: Simplify right side
    137,179,771.85x = 14,095,117,847,310,628
  5. Step 5: Solve for x
    x = 14,095,117,847,310,628/137,179,771.85
  6. Step 6: Final answer
    x = 102,749,243.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.