Home / 18,940,870.12-28,418,459.10-11,373,094.12

Finding the Fourth Proportional to 18,940,870.12, 28,418,459.10 and 11,373,094.12

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Solution

The fourth proportional to 18,940,870.12, 28,418,459.10 and 11,373,094.12 is: 17,063,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940,870.12 : 28,418,459.10 = 11,373,094.12 : x
  2. Step 2: Convert to fraction form
    18,940,870.12/28,418,459.10 = 11,373,094.12/x
  3. Step 3: Cross multiply
    18,940,870.12x = 28,418,459.10 × 11,373,094.12
  4. Step 4: Simplify right side
    18,940,870.12x = 323,205,810,089,670.50
  5. Step 5: Solve for x
    x = 323,205,810,089,670.50/18,940,870.12
  6. Step 6: Final answer
    x = 17,063,936.77

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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.