Home / 18,837,663.40-28,256,495.10-6,720,808.60

Finding the Fourth Proportional to 18,837,663.40, 28,256,495.10 and 6,720,808.60

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Solution

The fourth proportional to 18,837,663.40, 28,256,495.10 and 6,720,808.60 is: 10,081,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837,663.40 : 28,256,495.10 = 6,720,808.60 : x
  2. Step 2: Convert to fraction form
    18,837,663.40/28,256,495.10 = 6,720,808.60/x
  3. Step 3: Cross multiply
    18,837,663.40x = 28,256,495.10 × 6,720,808.60
  4. Step 4: Simplify right side
    18,837,663.40x = 189,906,495,273,937.88
  5. Step 5: Solve for x
    x = 189,906,495,273,937.88/18,837,663.40
  6. Step 6: Final answer
    x = 10,081,212.90

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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.