Home / 13,520,120-18,657,765.60-7,796,984

Finding the Fourth Proportional to 13,520,120, 18,657,765.60 and 7,796,984

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Solution

The fourth proportional to 13,520,120, 18,657,765.60 and 7,796,984 is: 10,759,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,120 : 18,657,765.60 = 7,796,984 : x
  2. Step 2: Convert to fraction form
    13,520,120/18,657,765.60 = 7,796,984/x
  3. Step 3: Cross multiply
    13,520,120x = 18,657,765.60 × 7,796,984
  4. Step 4: Simplify right side
    13,520,120x = 145,474,299,858,950.41
  5. Step 5: Solve for x
    x = 145,474,299,858,950.41/13,520,120
  6. Step 6: Final answer
    x = 10,759,837.92

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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.