Home / 13,111,213.80-19,666,820.70-8,009,380.20

Finding the Fourth Proportional to 13,111,213.80, 19,666,820.70 and 8,009,380.20

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Solution

The fourth proportional to 13,111,213.80, 19,666,820.70 and 8,009,380.20 is: 12,014,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,213.80 : 19,666,820.70 = 8,009,380.20 : x
  2. Step 2: Convert to fraction form
    13,111,213.80/19,666,820.70 = 8,009,380.20/x
  3. Step 3: Cross multiply
    13,111,213.80x = 19,666,820.70 × 8,009,380.20
  4. Step 4: Simplify right side
    13,111,213.80x = 157,519,044,311,530.12
  5. Step 5: Solve for x
    x = 157,519,044,311,530.12/13,111,213.80
  6. Step 6: Final answer
    x = 12,014,070.30

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1.5x scale

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.