Home / 673,857,469.89-929,971,429.16-372,436,297.45

Finding the Fourth Proportional to 673,857,469.89, 929,971,429.16 and 372,436,297.45

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Solution

The fourth proportional to 673,857,469.89, 929,971,429.16 and 372,436,297.45 is: 513,988,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,857,469.89 : 929,971,429.16 = 372,436,297.45 : x
  2. Step 2: Convert to fraction form
    673,857,469.89/929,971,429.16 = 372,436,297.45/x
  3. Step 3: Cross multiply
    673,857,469.89x = 929,971,429.16 × 372,436,297.45
  4. Step 4: Simplify right side
    673,857,469.89x = 346,355,115,806,448,256
  5. Step 5: Solve for x
    x = 346,355,115,806,448,256/673,857,469.89
  6. Step 6: Final answer
    x = 513,988,686.45

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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.