Home / 163,946,021.83-245,767,697.20-81,993,586.57

Finding the Fourth Proportional to 163,946,021.83, 245,767,697.20 and 81,993,586.57

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Solution

The fourth proportional to 163,946,021.83, 245,767,697.20 and 81,993,586.57 is: 122,914,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,946,021.83 : 245,767,697.20 = 81,993,586.57 : x
  2. Step 2: Convert to fraction form
    163,946,021.83/245,767,697.20 = 81,993,586.57/x
  3. Step 3: Cross multiply
    163,946,021.83x = 245,767,697.20 × 81,993,586.57
  4. Step 4: Simplify right side
    163,946,021.83x = 20,151,374,955,965,816
  5. Step 5: Solve for x
    x = 20,151,374,955,965,816/163,946,021.83
  6. Step 6: Final answer
    x = 122,914,693.09

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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.