Home / 20,737,266.40-31,105,899.60-9,378,085.60

Finding the Fourth Proportional to 20,737,266.40, 31,105,899.60 and 9,378,085.60

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Solution

The fourth proportional to 20,737,266.40, 31,105,899.60 and 9,378,085.60 is: 14,067,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,266.40 : 31,105,899.60 = 9,378,085.60 : x
  2. Step 2: Convert to fraction form
    20,737,266.40/31,105,899.60 = 9,378,085.60/x
  3. Step 3: Cross multiply
    20,737,266.40x = 31,105,899.60 × 9,378,085.60
  4. Step 4: Simplify right side
    20,737,266.40x = 291,713,789,113,805.75
  5. Step 5: Solve for x
    x = 291,713,789,113,805.75/20,737,266.40
  6. Step 6: Final answer
    x = 14,067,128.40

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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.