Home / 18,875,920.42-28,309,279.66-5,228,712.37

Finding the Fourth Proportional to 18,875,920.42, 28,309,279.66 and 5,228,712.37

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Solution

The fourth proportional to 18,875,920.42, 28,309,279.66 and 5,228,712.37 is: 7,841,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875,920.42 : 28,309,279.66 = 5,228,712.37 : x
  2. Step 2: Convert to fraction form
    18,875,920.42/28,309,279.66 = 5,228,712.37/x
  3. Step 3: Cross multiply
    18,875,920.42x = 28,309,279.66 × 5,228,712.37
  4. Step 4: Simplify right side
    18,875,920.42x = 148,021,080,744,031.41
  5. Step 5: Solve for x
    x = 148,021,080,744,031.41/18,875,920.42
  6. Step 6: Final answer
    x = 7,841,794.07

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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.