Home / 408,490,712.70-612,364,060.35-149,643,516.30

Finding the Fourth Proportional to 408,490,712.70, 612,364,060.35 and 149,643,516.30

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Solution

The fourth proportional to 408,490,712.70, 612,364,060.35 and 149,643,516.30 is: 224,328,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,490,712.70 : 612,364,060.35 = 149,643,516.30 : x
  2. Step 2: Convert to fraction form
    408,490,712.70/612,364,060.35 = 149,643,516.30/x
  3. Step 3: Cross multiply
    408,490,712.70x = 612,364,060.35 × 149,643,516.30
  4. Step 4: Simplify right side
    408,490,712.70x = 91,636,311,246,519,424
  5. Step 5: Solve for x
    x = 91,636,311,246,519,424/408,490,712.70
  6. Step 6: Final answer
    x = 224,328,995.49

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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.