Home / 30,172,709.10-45,288,292.92-28,534,099.35

Finding the Fourth Proportional to 30,172,709.10, 45,288,292.92 and 28,534,099.35

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Solution

The fourth proportional to 30,172,709.10, 45,288,292.92 and 28,534,099.35 is: 42,828,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172,709.10 : 45,288,292.92 = 28,534,099.35 : x
  2. Step 2: Convert to fraction form
    30,172,709.10/45,288,292.92 = 28,534,099.35/x
  3. Step 3: Cross multiply
    30,172,709.10x = 45,288,292.92 × 28,534,099.35
  4. Step 4: Simplify right side
    30,172,709.10x = 1,292,260,649,571,181.75
  5. Step 5: Solve for x
    x = 1,292,260,649,571,181.75/30,172,709.10
  6. Step 6: Final answer
    x = 42,828,790.92

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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.