Home / 18,416,928.80-27,588,068.40-10,429,421.60

Finding the Fourth Proportional to 18,416,928.80, 27,588,068.40 and 10,429,421.60

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Solution

The fourth proportional to 18,416,928.80, 27,588,068.40 and 10,429,421.60 is: 15,622,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416,928.80 : 27,588,068.40 = 10,429,421.60 : x
  2. Step 2: Convert to fraction form
    18,416,928.80/27,588,068.40 = 10,429,421.60/x
  3. Step 3: Cross multiply
    18,416,928.80x = 27,588,068.40 × 10,429,421.60
  4. Step 4: Simplify right side
    18,416,928.80x = 287,727,596,473,237.44
  5. Step 5: Solve for x
    x = 287,727,596,473,237.44/18,416,928.80
  6. Step 6: Final answer
    x = 15,622,995.54

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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.