Home / 285,368,803.66-393,810,964.59-154,988,611.66

Finding the Fourth Proportional to 285,368,803.66, 393,810,964.59 and 154,988,611.66

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Solution

The fourth proportional to 285,368,803.66, 393,810,964.59 and 154,988,611.66 is: 213,885,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,368,803.66 : 393,810,964.59 = 154,988,611.66 : x
  2. Step 2: Convert to fraction form
    285,368,803.66/393,810,964.59 = 154,988,611.66/x
  3. Step 3: Cross multiply
    285,368,803.66x = 393,810,964.59 × 154,988,611.66
  4. Step 4: Simplify right side
    285,368,803.66x = 61,036,214,658,289,512
  5. Step 5: Solve for x
    x = 61,036,214,658,289,512/285,368,803.66
  6. Step 6: Final answer
    x = 213,885,378.76

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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.