Home / 326,820,651.21-489,940,721.96-127,353,751.59

Finding the Fourth Proportional to 326,820,651.21, 489,940,721.96 and 127,353,751.59

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Solution

The fourth proportional to 326,820,651.21, 489,940,721.96 and 127,353,751.59 is: 190,917,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,820,651.21 : 489,940,721.96 = 127,353,751.59 : x
  2. Step 2: Convert to fraction form
    326,820,651.21/489,940,721.96 = 127,353,751.59/x
  3. Step 3: Cross multiply
    326,820,651.21x = 489,940,721.96 × 127,353,751.59
  4. Step 4: Simplify right side
    326,820,651.21x = 62,395,788,997,682,328
  5. Step 5: Solve for x
    x = 62,395,788,997,682,328/326,820,651.21
  6. Step 6: Final answer
    x = 190,917,522.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.