Home / 18,455,890.20-27,685,908.90-5,676,293.40

Finding the Fourth Proportional to 18,455,890.20, 27,685,908.90 and 5,676,293.40

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Solution

The fourth proportional to 18,455,890.20, 27,685,908.90 and 5,676,293.40 is: 8,515,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455,890.20 : 27,685,908.90 = 5,676,293.40 : x
  2. Step 2: Convert to fraction form
    18,455,890.20/27,685,908.90 = 5,676,293.40/x
  3. Step 3: Cross multiply
    18,455,890.20x = 27,685,908.90 × 5,676,293.40
  4. Step 4: Simplify right side
    18,455,890.20x = 157,153,341,962,071.25
  5. Step 5: Solve for x
    x = 157,153,341,962,071.25/18,455,890.20
  6. Step 6: Final answer
    x = 8,515,077.86

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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.