Home / 28,008,960.57-42,013,440.86-8,853,171.21

Finding the Fourth Proportional to 28,008,960.57, 42,013,440.86 and 8,853,171.21

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Solution

The fourth proportional to 28,008,960.57, 42,013,440.86 and 8,853,171.21 is: 13,279,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008,960.57 : 42,013,440.86 = 8,853,171.21 : x
  2. Step 2: Convert to fraction form
    28,008,960.57/42,013,440.86 = 8,853,171.21/x
  3. Step 3: Cross multiply
    28,008,960.57x = 42,013,440.86 × 8,853,171.21
  4. Step 4: Simplify right side
    28,008,960.57x = 371,952,185,010,523.81
  5. Step 5: Solve for x
    x = 371,952,185,010,523.81/28,008,960.57
  6. Step 6: Final answer
    x = 13,279,756.82

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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.