Home / 12,462,417.20-18,693,625.80-7,654,516.40

Finding the Fourth Proportional to 12,462,417.20, 18,693,625.80 and 7,654,516.40

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Solution

The fourth proportional to 12,462,417.20, 18,693,625.80 and 7,654,516.40 is: 11,481,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,417.20 : 18,693,625.80 = 7,654,516.40 : x
  2. Step 2: Convert to fraction form
    12,462,417.20/18,693,625.80 = 7,654,516.40/x
  3. Step 3: Cross multiply
    12,462,417.20x = 18,693,625.80 × 7,654,516.40
  4. Step 4: Simplify right side
    12,462,417.20x = 143,090,665,261,563.12
  5. Step 5: Solve for x
    x = 143,090,665,261,563.12/12,462,417.20
  6. Step 6: Final answer
    x = 11,481,774.60

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Similar ratio
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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.