Home / 258,600,962.72-387,891,996.24-76,843,416.80

Finding the Fourth Proportional to 258,600,962.72, 387,891,996.24 and 76,843,416.80

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Solution

The fourth proportional to 258,600,962.72, 387,891,996.24 and 76,843,416.80 is: 115,262,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,600,962.72 : 387,891,996.24 = 76,843,416.80 : x
  2. Step 2: Convert to fraction form
    258,600,962.72/387,891,996.24 = 76,843,416.80/x
  3. Step 3: Cross multiply
    258,600,962.72x = 387,891,996.24 × 76,843,416.80
  4. Step 4: Simplify right side
    258,600,962.72x = 29,806,946,340,454,352
  5. Step 5: Solve for x
    x = 29,806,946,340,454,352/258,600,962.72
  6. Step 6: Final answer
    x = 115,262,317.77

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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.