Home / 427,525,004.89-641,384,205.63-230,784,195.20

Finding the Fourth Proportional to 427,525,004.89, 641,384,205.63 and 230,784,195.20

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Solution

The fourth proportional to 427,525,004.89, 641,384,205.63 and 230,784,195.20 is: 346,228,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,525,004.89 : 641,384,205.63 = 230,784,195.20 : x
  2. Step 2: Convert to fraction form
    427,525,004.89/641,384,205.63 = 230,784,195.20/x
  3. Step 3: Cross multiply
    427,525,004.89x = 641,384,205.63 × 230,784,195.20
  4. Step 4: Simplify right side
    427,525,004.89x = 148,021,337,708,184,000
  5. Step 5: Solve for x
    x = 148,021,337,708,184,000/427,525,004.89
  6. Step 6: Final answer
    x = 346,228,491.94

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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.