Home / 51,139,472.08-76,621,886.52-28,129,654.48

Finding the Fourth Proportional to 51,139,472.08, 76,621,886.52 and 28,129,654.48

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Solution

The fourth proportional to 51,139,472.08, 76,621,886.52 and 28,129,654.48 is: 42,146,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,139,472.08 : 76,621,886.52 = 28,129,654.48 : x
  2. Step 2: Convert to fraction form
    51,139,472.08/76,621,886.52 = 28,129,654.48/x
  3. Step 3: Cross multiply
    51,139,472.08x = 76,621,886.52 × 28,129,654.48
  4. Step 4: Simplify right side
    51,139,472.08x = 2,155,347,193,413,369.50
  5. Step 5: Solve for x
    x = 2,155,347,193,413,369.50/51,139,472.08
  6. Step 6: Final answer
    x = 42,146,449.81

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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.