Home / 354,998,566.30-489,946,688.15-204,288,124.82

Finding the Fourth Proportional to 354,998,566.30, 489,946,688.15 and 204,288,124.82

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Solution

The fourth proportional to 354,998,566.30, 489,946,688.15 and 204,288,124.82 is: 281,945,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998,566.30 : 489,946,688.15 = 204,288,124.82 : x
  2. Step 2: Convert to fraction form
    354,998,566.30/489,946,688.15 = 204,288,124.82/x
  3. Step 3: Cross multiply
    354,998,566.30x = 489,946,688.15 × 204,288,124.82
  4. Step 4: Simplify right side
    354,998,566.30x = 100,090,290,180,461,632
  5. Step 5: Solve for x
    x = 100,090,290,180,461,632/354,998,566.30
  6. Step 6: Final answer
    x = 281,945,618.05

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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.