Home / 13,520,123-18,657,769.74-7,796,987

Finding the Fourth Proportional to 13,520,123, 18,657,769.74 and 7,796,987

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Solution

The fourth proportional to 13,520,123, 18,657,769.74 and 7,796,987 is: 10,759,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,123 : 18,657,769.74 = 7,796,987 : x
  2. Step 2: Convert to fraction form
    13,520,123/18,657,769.74 = 7,796,987/x
  3. Step 3: Cross multiply
    13,520,123x = 18,657,769.74 × 7,796,987
  4. Step 4: Simplify right side
    13,520,123x = 145,474,388,111,773.38
  5. Step 5: Solve for x
    x = 145,474,388,111,773.38/13,520,123
  6. Step 6: Final answer
    x = 10,759,842.06

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1.5x scale

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.