Home / 20,312,632.85-28,031,428.72-11,610,992.79

Finding the Fourth Proportional to 20,312,632.85, 28,031,428.72 and 11,610,992.79

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Solution

The fourth proportional to 20,312,632.85, 28,031,428.72 and 11,610,992.79 is: 16,023,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312,632.85 : 28,031,428.72 = 11,610,992.79 : x
  2. Step 2: Convert to fraction form
    20,312,632.85/28,031,428.72 = 11,610,992.79/x
  3. Step 3: Cross multiply
    20,312,632.85x = 28,031,428.72 × 11,610,992.79
  4. Step 4: Simplify right side
    20,312,632.85x = 325,472,716,775,832.69
  5. Step 5: Solve for x
    x = 325,472,716,775,832.69/20,312,632.85
  6. Step 6: Final answer
    x = 16,023,167.42

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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.