Home / 20,712,008.60-31,056,953.70-8,731,208.60

Finding the Fourth Proportional to 20,712,008.60, 31,056,953.70 and 8,731,208.60

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Solution

The fourth proportional to 20,712,008.60, 31,056,953.70 and 8,731,208.60 is: 13,092,150.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,008.60 : 31,056,953.70 = 8,731,208.60 : x
  2. Step 2: Convert to fraction form
    20,712,008.60/31,056,953.70 = 8,731,208.60/x
  3. Step 3: Cross multiply
    20,712,008.60x = 31,056,953.70 × 8,731,208.60
  4. Step 4: Simplify right side
    20,712,008.60x = 271,164,741,235,241.81
  5. Step 5: Solve for x
    x = 271,164,741,235,241.81/20,712,008.60
  6. Step 6: Final answer
    x = 13,092,150.86

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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.