Home / 12,757,539.40-19,136,309.10-12,589,577.80

Finding the Fourth Proportional to 12,757,539.40, 19,136,309.10 and 12,589,577.80

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Solution

The fourth proportional to 12,757,539.40, 19,136,309.10 and 12,589,577.80 is: 18,884,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757,539.40 : 19,136,309.10 = 12,589,577.80 : x
  2. Step 2: Convert to fraction form
    12,757,539.40/19,136,309.10 = 12,589,577.80/x
  3. Step 3: Cross multiply
    12,757,539.40x = 19,136,309.10 × 12,589,577.80
  4. Step 4: Simplify right side
    12,757,539.40x = 240,918,052,219,298
  5. Step 5: Solve for x
    x = 240,918,052,219,298/12,757,539.40
  6. Step 6: Final answer
    x = 18,884,366.70

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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.