Home / 379,508,967,221.88-523,732,010,867.13-208,230,853,318.62

Finding the Fourth Proportional to 379,508,967,221.88, 523,732,010,867.13 and 208,230,853,318.62

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Solution

The fourth proportional to 379,508,967,221.88, 523,732,010,867.13 and 208,230,853,318.62 is: 287,363,864,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,508,967,221.88 : 523,732,010,867.13 = 208,230,853,318.62 : x
  2. Step 2: Convert to fraction form
    379,508,967,221.88/523,732,010,867.13 = 208,230,853,318.62/x
  3. Step 3: Cross multiply
    379,508,967,221.88x = 523,732,010,867.13 × 208,230,853,318.62
  4. Step 4: Simplify right side
    379,508,967,221.88x = 109,057,163,533,139,243,433,984
  5. Step 5: Solve for x
    x = 109,057,163,533,139,243,433,984/379,508,967,221.88
  6. Step 6: Final answer
    x = 287,363,864,763.12

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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.