Home / 298,430,840.68-447,647,059.74-83,020,111.72

Finding the Fourth Proportional to 298,430,840.68, 447,647,059.74 and 83,020,111.72

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Solution

The fourth proportional to 298,430,840.68, 447,647,059.74 and 83,020,111.72 is: 124,530,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,430,840.68 : 447,647,059.74 = 83,020,111.72 : x
  2. Step 2: Convert to fraction form
    298,430,840.68/447,647,059.74 = 83,020,111.72/x
  3. Step 3: Cross multiply
    298,430,840.68x = 447,647,059.74 × 83,020,111.72
  4. Step 4: Simplify right side
    298,430,840.68x = 37,163,708,910,744,312
  5. Step 5: Solve for x
    x = 37,163,708,910,744,312/298,430,840.68
  6. Step 6: Final answer
    x = 124,530,389.77

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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.