Home / 456,129,456.21-684,194,172.21-210,413,391.75

Finding the Fourth Proportional to 456,129,456.21, 684,194,172.21 and 210,413,391.75

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Solution

The fourth proportional to 456,129,456.21, 684,194,172.21 and 210,413,391.75 is: 315,620,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,129,456.21 : 684,194,172.21 = 210,413,391.75 : x
  2. Step 2: Convert to fraction form
    456,129,456.21/684,194,172.21 = 210,413,391.75/x
  3. Step 3: Cross multiply
    456,129,456.21x = 684,194,172.21 × 210,413,391.75
  4. Step 4: Simplify right side
    456,129,456.21x = 143,963,616,390,289,696
  5. Step 5: Solve for x
    x = 143,963,616,390,289,696/456,129,456.21
  6. Step 6: Final answer
    x = 315,620,082.04

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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.