Home / 30,138,765.72-45,208,148.58-8,863,629.72

Finding the Fourth Proportional to 30,138,765.72, 45,208,148.58 and 8,863,629.72

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Solution

The fourth proportional to 30,138,765.72, 45,208,148.58 and 8,863,629.72 is: 13,295,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138,765.72 : 45,208,148.58 = 8,863,629.72 : x
  2. Step 2: Convert to fraction form
    30,138,765.72/45,208,148.58 = 8,863,629.72/x
  3. Step 3: Cross multiply
    30,138,765.72x = 45,208,148.58 × 8,863,629.72
  4. Step 4: Simplify right side
    30,138,765.72x = 400,708,289,339,863.81
  5. Step 5: Solve for x
    x = 400,708,289,339,863.81/30,138,765.72
  6. Step 6: Final answer
    x = 13,295,444.58

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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.