Home / 21,167,853.40-31,751,785.50-6,021,784.90

Finding the Fourth Proportional to 21,167,853.40, 31,751,785.50 and 6,021,784.90

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Solution

The fourth proportional to 21,167,853.40, 31,751,785.50 and 6,021,784.90 is: 9,032,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,853.40 : 31,751,785.50 = 6,021,784.90 : x
  2. Step 2: Convert to fraction form
    21,167,853.40/31,751,785.50 = 6,021,784.90/x
  3. Step 3: Cross multiply
    21,167,853.40x = 31,751,785.50 × 6,021,784.90
  4. Step 4: Simplify right side
    21,167,853.40x = 191,202,422,471,938.97
  5. Step 5: Solve for x
    x = 191,202,422,471,938.97/21,167,853.40
  6. Step 6: Final answer
    x = 9,032,678.89

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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.