Home / 20,657,999.70-30,986,999.55-6,281,044.43

Finding the Fourth Proportional to 20,657,999.70, 30,986,999.55 and 6,281,044.43

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Solution

The fourth proportional to 20,657,999.70, 30,986,999.55 and 6,281,044.43 is: 9,421,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,999.70 : 30,986,999.55 = 6,281,044.43 : x
  2. Step 2: Convert to fraction form
    20,657,999.70/30,986,999.55 = 6,281,044.43/x
  3. Step 3: Cross multiply
    20,657,999.70x = 30,986,999.55 × 6,281,044.43
  4. Step 4: Simplify right side
    20,657,999.70x = 194,630,720,771,005
  5. Step 5: Solve for x
    x = 194,630,720,771,005/20,657,999.70
  6. Step 6: Final answer
    x = 9,421,566.64

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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.