Home / 20,777,307.65-28,672,690.75-11,358,139.56

Finding the Fourth Proportional to 20,777,307.65, 28,672,690.75 and 11,358,139.56

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Solution

The fourth proportional to 20,777,307.65, 28,672,690.75 and 11,358,139.56 is: 15,674,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,307.65 : 28,672,690.75 = 11,358,139.56 : x
  2. Step 2: Convert to fraction form
    20,777,307.65/28,672,690.75 = 11,358,139.56/x
  3. Step 3: Cross multiply
    20,777,307.65x = 28,672,690.75 × 11,358,139.56
  4. Step 4: Simplify right side
    20,777,307.65x = 325,668,423,237,004.44
  5. Step 5: Solve for x
    x = 325,668,423,237,004.44/20,777,307.65
  6. Step 6: Final answer
    x = 15,674,235.98

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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.