Home / 20,750,409.16-31,136,385.90-8,463,386.80

Finding the Fourth Proportional to 20,750,409.16, 31,136,385.90 and 8,463,386.80

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Solution

The fourth proportional to 20,750,409.16, 31,136,385.90 and 8,463,386.80 is: 12,699,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750,409.16 : 31,136,385.90 = 8,463,386.80 : x
  2. Step 2: Convert to fraction form
    20,750,409.16/31,136,385.90 = 8,463,386.80/x
  3. Step 3: Cross multiply
    20,750,409.16x = 31,136,385.90 × 8,463,386.80
  4. Step 4: Simplify right side
    20,750,409.16x = 263,519,277,425,766.12
  5. Step 5: Solve for x
    x = 263,519,277,425,766.12/20,750,409.16
  6. Step 6: Final answer
    x = 12,699,473.80

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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.