Home / 28,971,659.68-43,494,365.40-18,779,170.30

Finding the Fourth Proportional to 28,971,659.68, 43,494,365.40 and 18,779,170.30

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Solution

The fourth proportional to 28,971,659.68, 43,494,365.40 and 18,779,170.30 is: 28,192,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971,659.68 : 43,494,365.40 = 18,779,170.30 : x
  2. Step 2: Convert to fraction form
    28,971,659.68/43,494,365.40 = 18,779,170.30/x
  3. Step 3: Cross multiply
    28,971,659.68x = 43,494,365.40 × 18,779,170.30
  4. Step 4: Simplify right side
    28,971,659.68x = 816,788,094,937,027.62
  5. Step 5: Solve for x
    x = 816,788,094,937,027.62/28,971,659.68
  6. Step 6: Final answer
    x = 28,192,658.07

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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.