Home / 13,509,489.60-20,219,997.60-10,501,387.20

Finding the Fourth Proportional to 13,509,489.60, 20,219,997.60 and 10,501,387.20

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Solution

The fourth proportional to 13,509,489.60, 20,219,997.60 and 10,501,387.20 is: 15,717,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509,489.60 : 20,219,997.60 = 10,501,387.20 : x
  2. Step 2: Convert to fraction form
    13,509,489.60/20,219,997.60 = 10,501,387.20/x
  3. Step 3: Cross multiply
    13,509,489.60x = 20,219,997.60 × 10,501,387.20
  4. Step 4: Simplify right side
    13,509,489.60x = 212,338,023,980,670.72
  5. Step 5: Solve for x
    x = 212,338,023,980,670.72/13,509,489.60
  6. Step 6: Final answer
    x = 15,717,694.03

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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.