Home / 13,074,401.80-19,611,602.70-7,972,568.20

Finding the Fourth Proportional to 13,074,401.80, 19,611,602.70 and 7,972,568.20

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Solution

The fourth proportional to 13,074,401.80, 19,611,602.70 and 7,972,568.20 is: 11,958,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074,401.80 : 19,611,602.70 = 7,972,568.20 : x
  2. Step 2: Convert to fraction form
    13,074,401.80/19,611,602.70 = 7,972,568.20/x
  3. Step 3: Cross multiply
    13,074,401.80x = 19,611,602.70 × 7,972,568.20
  4. Step 4: Simplify right side
    13,074,401.80x = 156,354,840,037,054.12
  5. Step 5: Solve for x
    x = 156,354,840,037,054.12/13,074,401.80
  6. Step 6: Final answer
    x = 11,958,852.30

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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.