Home / 13,135,087.80-19,702,631.70-12,575,215.80

Finding the Fourth Proportional to 13,135,087.80, 19,702,631.70 and 12,575,215.80

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Solution

The fourth proportional to 13,135,087.80, 19,702,631.70 and 12,575,215.80 is: 18,862,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,087.80 : 19,702,631.70 = 12,575,215.80 : x
  2. Step 2: Convert to fraction form
    13,135,087.80/19,702,631.70 = 12,575,215.80/x
  3. Step 3: Cross multiply
    13,135,087.80x = 19,702,631.70 × 12,575,215.80
  4. Step 4: Simplify right side
    13,135,087.80x = 247,764,845,455,420.88
  5. Step 5: Solve for x
    x = 247,764,845,455,420.88/13,135,087.80
  6. Step 6: Final answer
    x = 18,862,823.70

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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.