Home / 20,943,956.40-31,391,051.40-8,813,396.40

Finding the Fourth Proportional to 20,943,956.40, 31,391,051.40 and 8,813,396.40

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Solution

The fourth proportional to 20,943,956.40, 31,391,051.40 and 8,813,396.40 is: 13,209,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943,956.40 : 31,391,051.40 = 8,813,396.40 : x
  2. Step 2: Convert to fraction form
    20,943,956.40/31,391,051.40 = 8,813,396.40/x
  3. Step 3: Cross multiply
    20,943,956.40x = 31,391,051.40 × 8,813,396.40
  4. Step 4: Simplify right side
    20,943,956.40x = 276,661,779,400,974.97
  5. Step 5: Solve for x
    x = 276,661,779,400,974.97/20,943,956.40
  6. Step 6: Final answer
    x = 13,209,623.54

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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.