Home / 681,258,217.42-940,136,751.90-367,992,569.78

Finding the Fourth Proportional to 681,258,217.42, 940,136,751.90 and 367,992,569.78

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Solution

The fourth proportional to 681,258,217.42, 940,136,751.90 and 367,992,569.78 is: 507,829,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,258,217.42 : 940,136,751.90 = 367,992,569.78 : x
  2. Step 2: Convert to fraction form
    681,258,217.42/940,136,751.90 = 367,992,569.78/x
  3. Step 3: Cross multiply
    681,258,217.42x = 940,136,751.90 × 367,992,569.78
  4. Step 4: Simplify right side
    681,258,217.42x = 345,963,339,276,303,232
  5. Step 5: Solve for x
    x = 345,963,339,276,303,232/681,258,217.42
  6. Step 6: Final answer
    x = 507,829,968.77

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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.