Home / 28,257,511.42-42,329,514.90-12,883,653.20

Finding the Fourth Proportional to 28,257,511.42, 42,329,514.90 and 12,883,653.20

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Solution

The fourth proportional to 28,257,511.42, 42,329,514.90 and 12,883,653.20 is: 19,299,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257,511.42 : 42,329,514.90 = 12,883,653.20 : x
  2. Step 2: Convert to fraction form
    28,257,511.42/42,329,514.90 = 12,883,653.20/x
  3. Step 3: Cross multiply
    28,257,511.42x = 42,329,514.90 × 12,883,653.20
  4. Step 4: Simplify right side
    28,257,511.42x = 545,358,790,095,832.62
  5. Step 5: Solve for x
    x = 545,358,790,095,832.62/28,257,511.42
  6. Step 6: Final answer
    x = 19,299,604.34

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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.