Home / 512,464,969.80-768,622,805.10-148,921,417.80

Finding the Fourth Proportional to 512,464,969.80, 768,622,805.10 and 148,921,417.80

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Solution

The fourth proportional to 512,464,969.80, 768,622,805.10 and 148,921,417.80 is: 223,360,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,464,969.80 : 768,622,805.10 = 148,921,417.80 : x
  2. Step 2: Convert to fraction form
    512,464,969.80/768,622,805.10 = 148,921,417.80/x
  3. Step 3: Cross multiply
    512,464,969.80x = 768,622,805.10 × 148,921,417.80
  4. Step 4: Simplify right side
    512,464,969.80x = 114,464,397,888,905,088
  5. Step 5: Solve for x
    x = 114,464,397,888,905,088/512,464,969.80
  6. Step 6: Final answer
    x = 223,360,433.66

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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.