Home / 28,511,930.80-39,344,031.72-16,121,416.72

Finding the Fourth Proportional to 28,511,930.80, 39,344,031.72 and 16,121,416.72

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Solution

The fourth proportional to 28,511,930.80, 39,344,031.72 and 16,121,416.72 is: 22,246,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511,930.80 : 39,344,031.72 = 16,121,416.72 : x
  2. Step 2: Convert to fraction form
    28,511,930.80/39,344,031.72 = 16,121,416.72/x
  3. Step 3: Cross multiply
    28,511,930.80x = 39,344,031.72 × 16,121,416.72
  4. Step 4: Simplify right side
    28,511,930.80x = 634,281,530,803,018.38
  5. Step 5: Solve for x
    x = 634,281,530,803,018.38/28,511,930.80
  6. Step 6: Final answer
    x = 22,246,179.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.