Home / 128,466,028.89-177,283,297.49-69,728,705.55

Finding the Fourth Proportional to 128,466,028.89, 177,283,297.49 and 69,728,705.55

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Solution

The fourth proportional to 128,466,028.89, 177,283,297.49 and 69,728,705.55 is: 96,225,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,466,028.89 : 177,283,297.49 = 69,728,705.55 : x
  2. Step 2: Convert to fraction form
    128,466,028.89/177,283,297.49 = 69,728,705.55/x
  3. Step 3: Cross multiply
    128,466,028.89x = 177,283,297.49 × 69,728,705.55
  4. Step 4: Simplify right side
    128,466,028.89x = 12,361,734,849,264,622
  5. Step 5: Solve for x
    x = 12,361,734,849,264,622/128,466,028.89
  6. Step 6: Final answer
    x = 96,225,710.07

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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.