Home / 20,626,566.84-28,445,150.92-13,549,665.84

Finding the Fourth Proportional to 20,626,566.84, 28,445,150.92 and 13,549,665.84

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Solution

The fourth proportional to 20,626,566.84, 28,445,150.92 and 13,549,665.84 is: 18,685,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,566.84 : 28,445,150.92 = 13,549,665.84 : x
  2. Step 2: Convert to fraction form
    20,626,566.84/28,445,150.92 = 13,549,665.84/x
  3. Step 3: Cross multiply
    20,626,566.84x = 28,445,150.92 × 13,549,665.84
  4. Step 4: Simplify right side
    20,626,566.84x = 385,422,289,779,234.69
  5. Step 5: Solve for x
    x = 385,422,289,779,234.69/20,626,566.84
  6. Step 6: Final answer
    x = 18,685,721.81

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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.