Home / 354,989,037.40-489,903,795.30-198,359,946.52

Finding the Fourth Proportional to 354,989,037.40, 489,903,795.30 and 198,359,946.52

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Solution

The fourth proportional to 354,989,037.40, 489,903,795.30 and 198,359,946.52 is: 273,747,300.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989,037.40 : 489,903,795.30 = 198,359,946.52 : x
  2. Step 2: Convert to fraction form
    354,989,037.40/489,903,795.30 = 198,359,946.52/x
  3. Step 3: Cross multiply
    354,989,037.40x = 489,903,795.30 × 198,359,946.52
  4. Step 4: Simplify right side
    354,989,037.40x = 97,177,290,635,653,040
  5. Step 5: Solve for x
    x = 97,177,290,635,653,040/354,989,037.40
  6. Step 6: Final answer
    x = 273,747,300.33

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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.