Home / 285,087,765.24-393,421,119.39-154,707,573.24

Finding the Fourth Proportional to 285,087,765.24, 393,421,119.39 and 154,707,573.24

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Solution

The fourth proportional to 285,087,765.24, 393,421,119.39 and 154,707,573.24 is: 213,496,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087,765.24 : 393,421,119.39 = 154,707,573.24 : x
  2. Step 2: Convert to fraction form
    285,087,765.24/393,421,119.39 = 154,707,573.24/x
  3. Step 3: Cross multiply
    285,087,765.24x = 393,421,119.39 × 154,707,573.24
  4. Step 4: Simplify right side
    285,087,765.24x = 60,865,226,642,191,208
  5. Step 5: Solve for x
    x = 60,865,226,642,191,208/285,087,765.24
  6. Step 6: Final answer
    x = 213,496,452.89

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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.