Home / 28,331,738.40-42,508,338.48-16,980,333.60

Finding the Fourth Proportional to 28,331,738.40, 42,508,338.48 and 16,980,333.60

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Solution

The fourth proportional to 28,331,738.40, 42,508,338.48 and 16,980,333.60 is: 25,476,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,738.40 : 42,508,338.48 = 16,980,333.60 : x
  2. Step 2: Convert to fraction form
    28,331,738.40/42,508,338.48 = 16,980,333.60/x
  3. Step 3: Cross multiply
    28,331,738.40x = 42,508,338.48 × 16,980,333.60
  4. Step 4: Simplify right side
    28,331,738.40x = 721,805,768,172,116.88
  5. Step 5: Solve for x
    x = 721,805,768,172,116.88/28,331,738.40
  6. Step 6: Final answer
    x = 25,476,931.84

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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.