Home / 290,106,915.04-435,160,372.44-198,954,154.72

Finding the Fourth Proportional to 290,106,915.04, 435,160,372.44 and 198,954,154.72

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Solution

The fourth proportional to 290,106,915.04, 435,160,372.44 and 198,954,154.72 is: 298,431,232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,106,915.04 : 435,160,372.44 = 198,954,154.72 : x
  2. Step 2: Convert to fraction form
    290,106,915.04/435,160,372.44 = 198,954,154.72/x
  3. Step 3: Cross multiply
    290,106,915.04x = 435,160,372.44 × 198,954,154.72
  4. Step 4: Simplify right side
    290,106,915.04x = 86,576,964,066,440,576
  5. Step 5: Solve for x
    x = 86,576,964,066,440,576/290,106,915.04
  6. Step 6: Final answer
    x = 298,431,232.00

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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.