Home / 12,011,548.92-18,046,066.72-7,702,042.20

Finding the Fourth Proportional to 12,011,548.92, 18,046,066.72 and 7,702,042.20

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Solution

The fourth proportional to 12,011,548.92, 18,046,066.72 and 7,702,042.20 is: 11,571,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,548.92 : 18,046,066.72 = 7,702,042.20 : x
  2. Step 2: Convert to fraction form
    12,011,548.92/18,046,066.72 = 7,702,042.20/x
  3. Step 3: Cross multiply
    12,011,548.92x = 18,046,066.72 × 7,702,042.20
  4. Step 4: Simplify right side
    12,011,548.92x = 138,991,567,421,455.58
  5. Step 5: Solve for x
    x = 138,991,567,421,455.58/12,011,548.92
  6. Step 6: Final answer
    x = 11,571,494.10

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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.