Home / 34,139,021.43-47,115,500.60-20,916,973.13

Finding the Fourth Proportional to 34,139,021.43, 47,115,500.60 and 20,916,973.13

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Solution

The fourth proportional to 34,139,021.43, 47,115,500.60 and 20,916,973.13 is: 28,867,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139,021.43 : 47,115,500.60 = 20,916,973.13 : x
  2. Step 2: Convert to fraction form
    34,139,021.43/47,115,500.60 = 20,916,973.13/x
  3. Step 3: Cross multiply
    34,139,021.43x = 47,115,500.60 × 20,916,973.13
  4. Step 4: Simplify right side
    34,139,021.43x = 985,513,659,716,536.50
  5. Step 5: Solve for x
    x = 985,513,659,716,536.50/34,139,021.43
  6. Step 6: Final answer
    x = 28,867,659.89

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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.