Home / 57,761,455.85-86,623,891.35-18,890,926.78

Finding the Fourth Proportional to 57,761,455.85, 86,623,891.35 and 18,890,926.78

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Solution

The fourth proportional to 57,761,455.85, 86,623,891.35 and 18,890,926.78 is: 28,330,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,761,455.85 : 86,623,891.35 = 18,890,926.78 : x
  2. Step 2: Convert to fraction form
    57,761,455.85/86,623,891.35 = 18,890,926.78/x
  3. Step 3: Cross multiply
    57,761,455.85x = 86,623,891.35 × 18,890,926.78
  4. Step 4: Simplify right side
    57,761,455.85x = 1,636,405,588,604,124.50
  5. Step 5: Solve for x
    x = 1,636,405,588,604,124.50/57,761,455.85
  6. Step 6: Final answer
    x = 28,330,407.61

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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.