Home / 256,317,666.38-353,720,077.97-138,842,996.62

Finding the Fourth Proportional to 256,317,666.38, 353,720,077.97 and 138,842,996.62

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Solution

The fourth proportional to 256,317,666.38, 353,720,077.97 and 138,842,996.62 is: 191,604,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,666.38 : 353,720,077.97 = 138,842,996.62 : x
  2. Step 2: Convert to fraction form
    256,317,666.38/353,720,077.97 = 138,842,996.62/x
  3. Step 3: Cross multiply
    256,317,666.38x = 353,720,077.97 × 138,842,996.62
  4. Step 4: Simplify right side
    256,317,666.38x = 49,111,555,590,014,856
  5. Step 5: Solve for x
    x = 49,111,555,590,014,856/256,317,666.38
  6. Step 6: Final answer
    x = 191,604,255.31

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1.5x scale

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.