Home / 285,004,047.24-393,303,942.84-154,621,055.88

Finding the Fourth Proportional to 285,004,047.24, 393,303,942.84 and 154,621,055.88

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Solution

The fourth proportional to 285,004,047.24, 393,303,942.84 and 154,621,055.88 is: 213,376,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,004,047.24 : 393,303,942.84 = 154,621,055.88 : x
  2. Step 2: Convert to fraction form
    285,004,047.24/393,303,942.84 = 154,621,055.88/x
  3. Step 3: Cross multiply
    285,004,047.24x = 393,303,942.84 × 154,621,055.88
  4. Step 4: Simplify right side
    285,004,047.24x = 60,813,070,923,687,960
  5. Step 5: Solve for x
    x = 60,813,070,923,687,960/285,004,047.24
  6. Step 6: Final answer
    x = 213,376,166.10

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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.