Home / 21,515,697.60-32,230,000.80-13,403,774.40

Finding the Fourth Proportional to 21,515,697.60, 32,230,000.80 and 13,403,774.40

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Solution

The fourth proportional to 21,515,697.60, 32,230,000.80 and 13,403,774.40 is: 20,078,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515,697.60 : 32,230,000.80 = 13,403,774.40 : x
  2. Step 2: Convert to fraction form
    21,515,697.60/32,230,000.80 = 13,403,774.40/x
  3. Step 3: Cross multiply
    21,515,697.60x = 32,230,000.80 × 13,403,774.40
  4. Step 4: Simplify right side
    21,515,697.60x = 432,003,659,635,019.56
  5. Step 5: Solve for x
    x = 432,003,659,635,019.56/21,515,697.60
  6. Step 6: Final answer
    x = 20,078,533.71

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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.