Home / 198,912,005.70-298,368,008.55-145,164,293.70

Finding the Fourth Proportional to 198,912,005.70, 298,368,008.55 and 145,164,293.70

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Solution

The fourth proportional to 198,912,005.70, 298,368,008.55 and 145,164,293.70 is: 217,746,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,912,005.70 : 298,368,008.55 = 145,164,293.70 : x
  2. Step 2: Convert to fraction form
    198,912,005.70/298,368,008.55 = 145,164,293.70/x
  3. Step 3: Cross multiply
    198,912,005.70x = 298,368,008.55 × 145,164,293.70
  4. Step 4: Simplify right side
    198,912,005.70x = 43,312,381,223,836,312
  5. Step 5: Solve for x
    x = 43,312,381,223,836,312/198,912,005.70
  6. Step 6: Final answer
    x = 217,746,440.55

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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.