Home / 12,286,801.30-18,406,701.15-6,605,137.30

Finding the Fourth Proportional to 12,286,801.30, 18,406,701.15 and 6,605,137.30

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Solution

The fourth proportional to 12,286,801.30, 18,406,701.15 and 6,605,137.30 is: 9,895,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,801.30 : 18,406,701.15 = 6,605,137.30 : x
  2. Step 2: Convert to fraction form
    12,286,801.30/18,406,701.15 = 6,605,137.30/x
  3. Step 3: Cross multiply
    12,286,801.30x = 18,406,701.15 × 6,605,137.30
  4. Step 4: Simplify right side
    12,286,801.30x = 121,578,788,335,817.88
  5. Step 5: Solve for x
    x = 121,578,788,335,817.88/12,286,801.30
  6. Step 6: Final answer
    x = 9,895,072.39

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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.