Home / 28,907,867.76-39,894,319.08-15,856,341.12

Finding the Fourth Proportional to 28,907,867.76, 39,894,319.08 and 15,856,341.12

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Solution

The fourth proportional to 28,907,867.76, 39,894,319.08 and 15,856,341.12 is: 21,882,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907,867.76 : 39,894,319.08 = 15,856,341.12 : x
  2. Step 2: Convert to fraction form
    28,907,867.76/39,894,319.08 = 15,856,341.12/x
  3. Step 3: Cross multiply
    28,907,867.76x = 39,894,319.08 × 15,856,341.12
  4. Step 4: Simplify right side
    28,907,867.76x = 632,577,932,082,604.50
  5. Step 5: Solve for x
    x = 632,577,932,082,604.50/28,907,867.76
  6. Step 6: Final answer
    x = 21,882,552.44

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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.