Home / 412,280,861.40-618,421,292.10-248,703,321.60

Finding the Fourth Proportional to 412,280,861.40, 618,421,292.10 and 248,703,321.60

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Solution

The fourth proportional to 412,280,861.40, 618,421,292.10 and 248,703,321.60 is: 373,054,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,280,861.40 : 618,421,292.10 = 248,703,321.60 : x
  2. Step 2: Convert to fraction form
    412,280,861.40/618,421,292.10 = 248,703,321.60/x
  3. Step 3: Cross multiply
    412,280,861.40x = 618,421,292.10 × 248,703,321.60
  4. Step 4: Simplify right side
    412,280,861.40x = 153,803,429,493,433,856
  5. Step 5: Solve for x
    x = 153,803,429,493,433,856/412,280,861.40
  6. Step 6: Final answer
    x = 373,054,982.40

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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.