Home / 28,188,488.64-42,289,031.52-9,020,395.92

Finding the Fourth Proportional to 28,188,488.64, 42,289,031.52 and 9,020,395.92

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Solution

The fourth proportional to 28,188,488.64, 42,289,031.52 and 9,020,395.92 is: 13,532,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,488.64 : 42,289,031.52 = 9,020,395.92 : x
  2. Step 2: Convert to fraction form
    28,188,488.64/42,289,031.52 = 9,020,395.92/x
  3. Step 3: Cross multiply
    28,188,488.64x = 42,289,031.52 × 9,020,395.92
  4. Step 4: Simplify right side
    28,188,488.64x = 381,463,807,383,759.44
  5. Step 5: Solve for x
    x = 381,463,807,383,759.44/28,188,488.64
  6. Step 6: Final answer
    x = 13,532,609.44

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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.