Home / 28,995,339.20-40,012,491.96-15,941,821.52

Finding the Fourth Proportional to 28,995,339.20, 40,012,491.96 and 15,941,821.52

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Solution

The fourth proportional to 28,995,339.20, 40,012,491.96 and 15,941,821.52 is: 21,999,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995,339.20 : 40,012,491.96 = 15,941,821.52 : x
  2. Step 2: Convert to fraction form
    28,995,339.20/40,012,491.96 = 15,941,821.52/x
  3. Step 3: Cross multiply
    28,995,339.20x = 40,012,491.96 × 15,941,821.52
  4. Step 4: Simplify right side
    28,995,339.20x = 637,872,005,396,755
  5. Step 5: Solve for x
    x = 637,872,005,396,755/28,995,339.20
  6. Step 6: Final answer
    x = 21,999,122.03

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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.