Home / 380,890,101,007.52-525,628,425,187.05-209,612,032,496.98

Finding the Fourth Proportional to 380,890,101,007.52, 525,628,425,187.05 and 209,612,032,496.98

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Solution

The fourth proportional to 380,890,101,007.52, 525,628,425,187.05 and 209,612,032,496.98 is: 289,264,652,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890,101,007.52 : 525,628,425,187.05 = 209,612,032,496.98 : x
  2. Step 2: Convert to fraction form
    380,890,101,007.52/525,628,425,187.05 = 209,612,032,496.98/x
  3. Step 3: Cross multiply
    380,890,101,007.52x = 525,628,425,187.05 × 209,612,032,496.98
  4. Step 4: Simplify right side
    380,890,101,007.52x = 110,178,042,541,644,351,275,008
  5. Step 5: Solve for x
    x = 110,178,042,541,644,351,275,008/380,890,101,007.52
  6. Step 6: Final answer
    x = 289,264,652,061.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.