Home / 380,890,101,013.04-525,628,425,194.64-209,612,032,502.52

Finding the Fourth Proportional to 380,890,101,013.04, 525,628,425,194.64 and 209,612,032,502.52

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Solution

The fourth proportional to 380,890,101,013.04, 525,628,425,194.64 and 209,612,032,502.52 is: 289,264,652,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890,101,013.04 : 525,628,425,194.64 = 209,612,032,502.52 : x
  2. Step 2: Convert to fraction form
    380,890,101,013.04/525,628,425,194.64 = 209,612,032,502.52/x
  3. Step 3: Cross multiply
    380,890,101,013.04x = 525,628,425,194.64 × 209,612,032,502.52
  4. Step 4: Simplify right side
    380,890,101,013.04x = 110,178,042,546,147,272,163,328
  5. Step 5: Solve for x
    x = 110,178,042,546,147,272,163,328/380,890,101,013.04
  6. Step 6: Final answer
    x = 289,264,652,069.22

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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.