Home / 285,087,768.24-393,421,123.53-154,707,576.24

Finding the Fourth Proportional to 285,087,768.24, 393,421,123.53 and 154,707,576.24

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Solution

The fourth proportional to 285,087,768.24, 393,421,123.53 and 154,707,576.24 is: 213,496,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087,768.24 : 393,421,123.53 = 154,707,576.24 : x
  2. Step 2: Convert to fraction form
    285,087,768.24/393,421,123.53 = 154,707,576.24/x
  3. Step 3: Cross multiply
    285,087,768.24x = 393,421,123.53 × 154,707,576.24
  4. Step 4: Simplify right side
    285,087,768.24x = 60,865,228,462,943,936
  5. Step 5: Solve for x
    x = 60,865,228,462,943,936/285,087,768.24
  6. Step 6: Final answer
    x = 213,496,457.03

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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.