Home / 681,258,211.72-940,136,744.05-367,992,564.09

Finding the Fourth Proportional to 681,258,211.72, 940,136,744.05 and 367,992,564.09

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Solution

The fourth proportional to 681,258,211.72, 940,136,744.05 and 367,992,564.09 is: 507,829,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,258,211.72 : 940,136,744.05 = 367,992,564.09 : x
  2. Step 2: Convert to fraction form
    681,258,211.72/940,136,744.05 = 367,992,564.09/x
  3. Step 3: Cross multiply
    681,258,211.72x = 940,136,744.05 × 367,992,564.09
  4. Step 4: Simplify right side
    681,258,211.72x = 345,963,331,041,099,200
  5. Step 5: Solve for x
    x = 345,963,331,041,099,200/681,258,211.72
  6. Step 6: Final answer
    x = 507,829,960.93

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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.