Home / 18,291,345.40-27,437,018.10-11,488,900.60

Finding the Fourth Proportional to 18,291,345.40, 27,437,018.10 and 11,488,900.60

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Solution

The fourth proportional to 18,291,345.40, 27,437,018.10 and 11,488,900.60 is: 17,233,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291,345.40 : 27,437,018.10 = 11,488,900.60 : x
  2. Step 2: Convert to fraction form
    18,291,345.40/27,437,018.10 = 11,488,900.60/x
  3. Step 3: Cross multiply
    18,291,345.40x = 27,437,018.10 × 11,488,900.60
  4. Step 4: Simplify right side
    18,291,345.40x = 315,221,173,711,300.88
  5. Step 5: Solve for x
    x = 315,221,173,711,300.88/18,291,345.40
  6. Step 6: Final answer
    x = 17,233,350.90

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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.