Home / 21,855,814.40-32,783,721.60-11,778,118.40

Finding the Fourth Proportional to 21,855,814.40, 32,783,721.60 and 11,778,118.40

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Solution

The fourth proportional to 21,855,814.40, 32,783,721.60 and 11,778,118.40 is: 17,667,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855,814.40 : 32,783,721.60 = 11,778,118.40 : x
  2. Step 2: Convert to fraction form
    21,855,814.40/32,783,721.60 = 11,778,118.40/x
  3. Step 3: Cross multiply
    21,855,814.40x = 32,783,721.60 × 11,778,118.40
  4. Step 4: Simplify right side
    21,855,814.40x = 386,130,554,597,437.50
  5. Step 5: Solve for x
    x = 386,130,554,597,437.50/21,855,814.40
  6. Step 6: Final answer
    x = 17,667,177.60

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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.