Home / 20,916,420.60-31,374,630.90-5,770,327.80

Finding the Fourth Proportional to 20,916,420.60, 31,374,630.90 and 5,770,327.80

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Solution

The fourth proportional to 20,916,420.60, 31,374,630.90 and 5,770,327.80 is: 8,655,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,420.60 : 31,374,630.90 = 5,770,327.80 : x
  2. Step 2: Convert to fraction form
    20,916,420.60/31,374,630.90 = 5,770,327.80/x
  3. Step 3: Cross multiply
    20,916,420.60x = 31,374,630.90 × 5,770,327.80
  4. Step 4: Simplify right side
    20,916,420.60x = 181,041,904,897,009
  5. Step 5: Solve for x
    x = 181,041,904,897,009/20,916,420.60
  6. Step 6: Final answer
    x = 8,655,491.70

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1.5x scale

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.