Home / 672,381,009.80-1,008,571,514.70-412,754,366.60

Finding the Fourth Proportional to 672,381,009.80, 1,008,571,514.70 and 412,754,366.60

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Solution

The fourth proportional to 672,381,009.80, 1,008,571,514.70 and 412,754,366.60 is: 619,131,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,381,009.80 : 1,008,571,514.70 = 412,754,366.60 : x
  2. Step 2: Convert to fraction form
    672,381,009.80/1,008,571,514.70 = 412,754,366.60/x
  3. Step 3: Cross multiply
    672,381,009.80x = 1,008,571,514.70 × 412,754,366.60
  4. Step 4: Simplify right side
    672,381,009.80x = 416,292,296,720,801,152
  5. Step 5: Solve for x
    x = 416,292,296,720,801,152/672,381,009.80
  6. Step 6: Final answer
    x = 619,131,549.90

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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.