Home / 13,609,777.60-20,413,988.16-5,089,487.68

Finding the Fourth Proportional to 13,609,777.60, 20,413,988.16 and 5,089,487.68

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Solution

The fourth proportional to 13,609,777.60, 20,413,988.16 and 5,089,487.68 is: 7,633,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,777.60 : 20,413,988.16 = 5,089,487.68 : x
  2. Step 2: Convert to fraction form
    13,609,777.60/20,413,988.16 = 5,089,487.68/x
  3. Step 3: Cross multiply
    13,609,777.60x = 20,413,988.16 × 5,089,487.68
  4. Step 4: Simplify right side
    13,609,777.60x = 103,896,741,239,985.86
  5. Step 5: Solve for x
    x = 103,896,741,239,985.86/13,609,777.60
  6. Step 6: Final answer
    x = 7,633,977.89

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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.