Home / 20,461,012.56-28,236,199.68-11,293,657.68

Finding the Fourth Proportional to 20,461,012.56, 28,236,199.68 and 11,293,657.68

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Solution

The fourth proportional to 20,461,012.56, 28,236,199.68 and 11,293,657.68 is: 15,585,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461,012.56 : 28,236,199.68 = 11,293,657.68 : x
  2. Step 2: Convert to fraction form
    20,461,012.56/28,236,199.68 = 11,293,657.68/x
  3. Step 3: Cross multiply
    20,461,012.56x = 28,236,199.68 × 11,293,657.68
  4. Step 4: Simplify right side
    20,461,012.56x = 318,889,973,370,045.50
  5. Step 5: Solve for x
    x = 318,889,973,370,045.50/20,461,012.56
  6. Step 6: Final answer
    x = 15,585,248.89

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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.