Home / 285,087,770.24-393,421,126.29-154,707,578.24

Finding the Fourth Proportional to 285,087,770.24, 393,421,126.29 and 154,707,578.24

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Solution

The fourth proportional to 285,087,770.24, 393,421,126.29 and 154,707,578.24 is: 213,496,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087,770.24 : 393,421,126.29 = 154,707,578.24 : x
  2. Step 2: Convert to fraction form
    285,087,770.24/393,421,126.29 = 154,707,578.24/x
  3. Step 3: Cross multiply
    285,087,770.24x = 393,421,126.29 × 154,707,578.24
  4. Step 4: Simplify right side
    285,087,770.24x = 60,865,229,676,779,104
  5. Step 5: Solve for x
    x = 60,865,229,676,779,104/285,087,770.24
  6. Step 6: Final answer
    x = 213,496,459.79

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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.