Home / 72,436,313.36-99,964,003.56-39,842,120.72

Finding the Fourth Proportional to 72,436,313.36, 99,964,003.56 and 39,842,120.72

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Solution

The fourth proportional to 72,436,313.36, 99,964,003.56 and 39,842,120.72 is: 54,983,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,436,313.36 : 99,964,003.56 = 39,842,120.72 : x
  2. Step 2: Convert to fraction form
    72,436,313.36/99,964,003.56 = 39,842,120.72/x
  3. Step 3: Cross multiply
    72,436,313.36x = 99,964,003.56 × 39,842,120.72
  4. Step 4: Simplify right side
    72,436,313.36x = 3,982,777,897,492,029.50
  5. Step 5: Solve for x
    x = 3,982,777,897,492,029.50/72,436,313.36
  6. Step 6: Final answer
    x = 54,983,166.77

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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.