Home / 20,430,416.56-28,194,192.16-11,263,387.36

Finding the Fourth Proportional to 20,430,416.56, 28,194,192.16 and 11,263,387.36

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Solution

The fourth proportional to 20,430,416.56, 28,194,192.16 and 11,263,387.36 is: 15,543,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,416.56 : 28,194,192.16 = 11,263,387.36 : x
  2. Step 2: Convert to fraction form
    20,430,416.56/28,194,192.16 = 11,263,387.36/x
  3. Step 3: Cross multiply
    20,430,416.56x = 28,194,192.16 × 11,263,387.36
  4. Step 4: Simplify right side
    20,430,416.56x = 317,562,107,600,355.06
  5. Step 5: Solve for x
    x = 317,562,107,600,355.06/20,430,416.56
  6. Step 6: Final answer
    x = 15,543,594.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.