Home / 20,847,785.08-31,275,606.06-7,897,814.50

Finding the Fourth Proportional to 20,847,785.08, 31,275,606.06 and 7,897,814.50

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Solution

The fourth proportional to 20,847,785.08, 31,275,606.06 and 7,897,814.50 is: 11,848,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,785.08 : 31,275,606.06 = 7,897,814.50 : x
  2. Step 2: Convert to fraction form
    20,847,785.08/31,275,606.06 = 7,897,814.50/x
  3. Step 3: Cross multiply
    20,847,785.08x = 31,275,606.06 × 7,897,814.50
  4. Step 4: Simplify right side
    20,847,785.08x = 247,008,935,036,955.88
  5. Step 5: Solve for x
    x = 247,008,935,036,955.88/20,847,785.08
  6. Step 6: Final answer
    x = 11,848,209.97

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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.