Home / 20,206,776.18-30,329,326.77-12,507,130.29

Finding the Fourth Proportional to 20,206,776.18, 30,329,326.77 and 12,507,130.29

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Solution

The fourth proportional to 20,206,776.18, 30,329,326.77 and 12,507,130.29 is: 18,772,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,776.18 : 30,329,326.77 = 12,507,130.29 : x
  2. Step 2: Convert to fraction form
    20,206,776.18/30,329,326.77 = 12,507,130.29/x
  3. Step 3: Cross multiply
    20,206,776.18x = 30,329,326.77 × 12,507,130.29
  4. Step 4: Simplify right side
    20,206,776.18x = 379,332,841,587,208.06
  5. Step 5: Solve for x
    x = 379,332,841,587,208.06/20,206,776.18
  6. Step 6: Final answer
    x = 18,772,556.20

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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.