Home / 13,265,008.80-19,908,010.80-5,181,856.80

Finding the Fourth Proportional to 13,265,008.80, 19,908,010.80 and 5,181,856.80

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Solution

The fourth proportional to 13,265,008.80, 19,908,010.80 and 5,181,856.80 is: 7,776,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265,008.80 : 19,908,010.80 = 5,181,856.80 : x
  2. Step 2: Convert to fraction form
    13,265,008.80/19,908,010.80 = 5,181,856.80/x
  3. Step 3: Cross multiply
    13,265,008.80x = 19,908,010.80 × 5,181,856.80
  4. Step 4: Simplify right side
    13,265,008.80x = 103,160,461,138,453.44
  5. Step 5: Solve for x
    x = 103,160,461,138,453.44/13,265,008.80
  6. Step 6: Final answer
    x = 7,776,885.99

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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.