Home / 11,752,509.60-17,628,764.40-7,721,431.20

Finding the Fourth Proportional to 11,752,509.60, 17,628,764.40 and 7,721,431.20

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Solution

The fourth proportional to 11,752,509.60, 17,628,764.40 and 7,721,431.20 is: 11,582,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,752,509.60 : 17,628,764.40 = 7,721,431.20 : x
  2. Step 2: Convert to fraction form
    11,752,509.60/17,628,764.40 = 7,721,431.20/x
  3. Step 3: Cross multiply
    11,752,509.60x = 17,628,764.40 × 7,721,431.20
  4. Step 4: Simplify right side
    11,752,509.60x = 136,119,291,455,609.27
  5. Step 5: Solve for x
    x = 136,119,291,455,609.27/11,752,509.60
  6. Step 6: Final answer
    x = 11,582,146.80

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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.