Home / 672,945,809.80-1,009,513,193.10-212,836,001.80

Finding the Fourth Proportional to 672,945,809.80, 1,009,513,193.10 and 212,836,001.80

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Solution

The fourth proportional to 672,945,809.80, 1,009,513,193.10 and 212,836,001.80 is: 319,283,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,945,809.80 : 1,009,513,193.10 = 212,836,001.80 : x
  2. Step 2: Convert to fraction form
    672,945,809.80/1,009,513,193.10 = 212,836,001.80/x
  3. Step 3: Cross multiply
    672,945,809.80x = 1,009,513,193.10 × 212,836,001.80
  4. Step 4: Simplify right side
    672,945,809.80x = 214,860,751,783,755,360
  5. Step 5: Solve for x
    x = 214,860,751,783,755,360/672,945,809.80
  6. Step 6: Final answer
    x = 319,283,883.87

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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.