Home / 328,896,768.40-493,345,152.60-298,663,680.40

Finding the Fourth Proportional to 328,896,768.40, 493,345,152.60 and 298,663,680.40

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Solution

The fourth proportional to 328,896,768.40, 493,345,152.60 and 298,663,680.40 is: 447,995,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,896,768.40 : 493,345,152.60 = 298,663,680.40 : x
  2. Step 2: Convert to fraction form
    328,896,768.40/493,345,152.60 = 298,663,680.40/x
  3. Step 3: Cross multiply
    328,896,768.40x = 493,345,152.60 × 298,663,680.40
  4. Step 4: Simplify right side
    328,896,768.40x = 147,344,278,983,015,616
  5. Step 5: Solve for x
    x = 147,344,278,983,015,616/328,896,768.40
  6. Step 6: Final answer
    x = 447,995,520.60

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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.