Home / 28,658,846.32-39,548,163.77-15,605,818.90

Finding the Fourth Proportional to 28,658,846.32, 39,548,163.77 and 15,605,818.90

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Solution

The fourth proportional to 28,658,846.32, 39,548,163.77 and 15,605,818.90 is: 21,535,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658,846.32 : 39,548,163.77 = 15,605,818.90 : x
  2. Step 2: Convert to fraction form
    28,658,846.32/39,548,163.77 = 15,605,818.90/x
  3. Step 3: Cross multiply
    28,658,846.32x = 39,548,163.77 × 15,605,818.90
  4. Step 4: Simplify right side
    28,658,846.32x = 617,181,481,503,783.50
  5. Step 5: Solve for x
    x = 617,181,481,503,783.50/28,658,846.32
  6. Step 6: Final answer
    x = 21,535,461.50

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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.