Home / 8,420,346.51-11,620,062.37-4,749,251.72

Finding the Fourth Proportional to 8,420,346.51, 11,620,062.37 and 4,749,251.72

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Solution

The fourth proportional to 8,420,346.51, 11,620,062.37 and 4,749,251.72 is: 6,553,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,346.51 : 11,620,062.37 = 4,749,251.72 : x
  2. Step 2: Convert to fraction form
    8,420,346.51/11,620,062.37 = 4,749,251.72/x
  3. Step 3: Cross multiply
    8,420,346.51x = 11,620,062.37 × 4,749,251.72
  4. Step 4: Simplify right side
    8,420,346.51x = 55,186,601,266,127.89
  5. Step 5: Solve for x
    x = 55,186,601,266,127.89/8,420,346.51
  6. Step 6: Final answer
    x = 6,553,958.46

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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.