Home / 489,936,561.29-675,658,301.87-357,567,890.57

Finding the Fourth Proportional to 489,936,561.29, 675,658,301.87 and 357,567,890.57

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Solution

The fourth proportional to 489,936,561.29, 675,658,301.87 and 357,567,890.57 is: 493,112,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,936,561.29 : 675,658,301.87 = 357,567,890.57 : x
  2. Step 2: Convert to fraction form
    489,936,561.29/675,658,301.87 = 357,567,890.57/x
  3. Step 3: Cross multiply
    489,936,561.29x = 675,658,301.87 × 357,567,890.57
  4. Step 4: Simplify right side
    489,936,561.29x = 241,593,713,743,800,448
  5. Step 5: Solve for x
    x = 241,593,713,743,800,448/489,936,561.29
  6. Step 6: Final answer
    x = 493,112,237.04

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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.