Home / 30,684,742.38-42,344,901.63-16,933,704.30

Finding the Fourth Proportional to 30,684,742.38, 42,344,901.63 and 16,933,704.30

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Solution

The fourth proportional to 30,684,742.38, 42,344,901.63 and 16,933,704.30 is: 23,368,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,684,742.38 : 42,344,901.63 = 16,933,704.30 : x
  2. Step 2: Convert to fraction form
    30,684,742.38/42,344,901.63 = 16,933,704.30/x
  3. Step 3: Cross multiply
    30,684,742.38x = 42,344,901.63 × 16,933,704.30
  4. Step 4: Simplify right side
    30,684,742.38x = 717,056,042,815,008.12
  5. Step 5: Solve for x
    x = 717,056,042,815,008.12/30,684,742.38
  6. Step 6: Final answer
    x = 23,368,488.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.