Home / 257,258,028.42-385,670,106.54-111,581,870.94

Finding the Fourth Proportional to 257,258,028.42, 385,670,106.54 and 111,581,870.94

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Solution

The fourth proportional to 257,258,028.42, 385,670,106.54 and 111,581,870.94 is: 167,278,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,258,028.42 : 385,670,106.54 = 111,581,870.94 : x
  2. Step 2: Convert to fraction form
    257,258,028.42/385,670,106.54 = 111,581,870.94/x
  3. Step 3: Cross multiply
    257,258,028.42x = 385,670,106.54 × 111,581,870.94
  4. Step 4: Simplify right side
    257,258,028.42x = 43,033,792,053,362,328
  5. Step 5: Solve for x
    x = 43,033,792,053,362,328/257,258,028.42
  6. Step 6: Final answer
    x = 167,278,713.58

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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.