Home / 354,998,454.90-489,946,534.28-204,288,013.36

Finding the Fourth Proportional to 354,998,454.90, 489,946,534.28 and 204,288,013.36

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Solution

The fourth proportional to 354,998,454.90, 489,946,534.28 and 204,288,013.36 is: 281,945,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,454.90 : 489,946,534.28 = 204,288,013.36 : x
  2. Step 2: Convert to fraction form
    354,998,454.90/489,946,534.28 = 204,288,013.36/x
  3. Step 3: Cross multiply
    354,998,454.90x = 489,946,534.28 × 204,288,013.36
  4. Step 4: Simplify right side
    354,998,454.90x = 100,090,204,140,678,336
  5. Step 5: Solve for x
    x = 100,090,204,140,678,336/354,998,454.90
  6. Step 6: Final answer
    x = 281,945,464.15

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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.