Home / 12,356,577.20-18,537,952.32-8,720,404.36

Finding the Fourth Proportional to 12,356,577.20, 18,537,952.32 and 8,720,404.36

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Solution

The fourth proportional to 12,356,577.20, 18,537,952.32 and 8,720,404.36 is: 13,082,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,577.20 : 18,537,952.32 = 8,720,404.36 : x
  2. Step 2: Convert to fraction form
    12,356,577.20/18,537,952.32 = 8,720,404.36/x
  3. Step 3: Cross multiply
    12,356,577.20x = 18,537,952.32 × 8,720,404.36
  4. Step 4: Simplify right side
    12,356,577.20x = 161,658,440,236,800.09
  5. Step 5: Solve for x
    x = 161,658,440,236,800.09/12,356,577.20
  6. Step 6: Final answer
    x = 13,082,784.79

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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.