Home / 13,317,913.56-18,378,783.54-7,516,939.80

Finding the Fourth Proportional to 13,317,913.56, 18,378,783.54 and 7,516,939.80

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Solution

The fourth proportional to 13,317,913.56, 18,378,783.54 and 7,516,939.80 is: 10,373,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317,913.56 : 18,378,783.54 = 7,516,939.80 : x
  2. Step 2: Convert to fraction form
    13,317,913.56/18,378,783.54 = 7,516,939.80/x
  3. Step 3: Cross multiply
    13,317,913.56x = 18,378,783.54 × 7,516,939.80
  4. Step 4: Simplify right side
    13,317,913.56x = 138,152,209,467,410.88
  5. Step 5: Solve for x
    x = 138,152,209,467,410.88/13,317,913.56
  6. Step 6: Final answer
    x = 10,373,412.39

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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.