Home / 380,890,101,079.60-525,628,425,286.52-209,612,032,569.12

Finding the Fourth Proportional to 380,890,101,079.60, 525,628,425,286.52 and 209,612,032,569.12

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Solution

The fourth proportional to 380,890,101,079.60, 525,628,425,286.52 and 209,612,032,569.12 is: 289,264,652,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890,101,079.60 : 525,628,425,286.52 = 209,612,032,569.12 : x
  2. Step 2: Convert to fraction form
    380,890,101,079.60/525,628,425,286.52 = 209,612,032,569.12/x
  3. Step 3: Cross multiply
    380,890,101,079.60x = 525,628,425,286.52 × 209,612,032,569.12
  4. Step 4: Simplify right side
    380,890,101,079.60x = 110,178,042,600,413,294,755,840
  5. Step 5: Solve for x
    x = 110,178,042,600,413,294,755,840/380,890,101,079.60
  6. Step 6: Final answer
    x = 289,264,652,161.14

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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.