Home / 28,072,642.20-42,108,963.30-9,879,645.30

Finding the Fourth Proportional to 28,072,642.20, 42,108,963.30 and 9,879,645.30

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Solution

The fourth proportional to 28,072,642.20, 42,108,963.30 and 9,879,645.30 is: 14,819,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,642.20 : 42,108,963.30 = 9,879,645.30 : x
  2. Step 2: Convert to fraction form
    28,072,642.20/42,108,963.30 = 9,879,645.30/x
  3. Step 3: Cross multiply
    28,072,642.20x = 42,108,963.30 × 9,879,645.30
  4. Step 4: Simplify right side
    28,072,642.20x = 416,021,621,354,717.50
  5. Step 5: Solve for x
    x = 416,021,621,354,717.50/28,072,642.20
  6. Step 6: Final answer
    x = 14,819,467.95

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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.