Home / 18,085,368.60-27,131,041.80-8,379,681.30

Finding the Fourth Proportional to 18,085,368.60, 27,131,041.80 and 8,379,681.30

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Solution

The fourth proportional to 18,085,368.60, 27,131,041.80 and 8,379,681.30 is: 12,570,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085,368.60 : 27,131,041.80 = 8,379,681.30 : x
  2. Step 2: Convert to fraction form
    18,085,368.60/27,131,041.80 = 8,379,681.30/x
  3. Step 3: Cross multiply
    18,085,368.60x = 27,131,041.80 × 8,379,681.30
  4. Step 4: Simplify right side
    18,085,368.60x = 227,349,483,620,978.34
  5. Step 5: Solve for x
    x = 227,349,483,620,978.34/18,085,368.60
  6. Step 6: Final answer
    x = 12,570,906.83

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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.