Home / 20,506,006.20-30,770,819.10-7,735,675.80

Finding the Fourth Proportional to 20,506,006.20, 30,770,819.10 and 7,735,675.80

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Solution

The fourth proportional to 20,506,006.20, 30,770,819.10 and 7,735,675.80 is: 11,607,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506,006.20 : 30,770,819.10 = 7,735,675.80 : x
  2. Step 2: Convert to fraction form
    20,506,006.20/30,770,819.10 = 7,735,675.80/x
  3. Step 3: Cross multiply
    20,506,006.20x = 30,770,819.10 × 7,735,675.80
  4. Step 4: Simplify right side
    20,506,006.20x = 238,033,080,658,047.78
  5. Step 5: Solve for x
    x = 238,033,080,658,047.78/20,506,006.20
  6. Step 6: Final answer
    x = 11,607,968.82

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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.