Home / 290,106,916.04-435,160,373.94-198,954,155.72

Finding the Fourth Proportional to 290,106,916.04, 435,160,373.94 and 198,954,155.72

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Solution

The fourth proportional to 290,106,916.04, 435,160,373.94 and 198,954,155.72 is: 298,431,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,106,916.04 : 435,160,373.94 = 198,954,155.72 : x
  2. Step 2: Convert to fraction form
    290,106,916.04/435,160,373.94 = 198,954,155.72/x
  3. Step 3: Cross multiply
    290,106,916.04x = 435,160,373.94 × 198,954,155.72
  4. Step 4: Simplify right side
    290,106,916.04x = 86,576,964,800,032,192
  5. Step 5: Solve for x
    x = 86,576,964,800,032,192/290,106,916.04
  6. Step 6: Final answer
    x = 298,431,233.50

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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.