Home / 5,430,996.80-8,144,421.60-1,643,220.80

Finding the Fourth Proportional to 5,430,996.80, 8,144,421.60 and 1,643,220.80

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Solution

The fourth proportional to 5,430,996.80, 8,144,421.60 and 1,643,220.80 is: 2,464,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,996.80 : 8,144,421.60 = 1,643,220.80 : x
  2. Step 2: Convert to fraction form
    5,430,996.80/8,144,421.60 = 1,643,220.80/x
  3. Step 3: Cross multiply
    5,430,996.80x = 8,144,421.60 × 1,643,220.80
  4. Step 4: Simplify right side
    5,430,996.80x = 13,383,082,977,089.28
  5. Step 5: Solve for x
    x = 13,383,082,977,089.28/5,430,996.80
  6. Step 6: Final answer
    x = 2,464,203.80

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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.