Home / 20,501,200.90-30,756,466.95-11,977,149.70

Finding the Fourth Proportional to 20,501,200.90, 30,756,466.95 and 11,977,149.70

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Solution

The fourth proportional to 20,501,200.90, 30,756,466.95 and 11,977,149.70 is: 17,968,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,200.90 : 30,756,466.95 = 11,977,149.70 : x
  2. Step 2: Convert to fraction form
    20,501,200.90/30,756,466.95 = 11,977,149.70/x
  3. Step 3: Cross multiply
    20,501,200.90x = 30,756,466.95 × 11,977,149.70
  4. Step 4: Simplify right side
    20,501,200.90x = 368,374,808,903,252.38
  5. Step 5: Solve for x
    x = 368,374,808,903,252.38/20,501,200.90
  6. Step 6: Final answer
    x = 17,968,450.27

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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.