Home / 256,317,677.19-353,720,092.86-138,843,007.56

Finding the Fourth Proportional to 256,317,677.19, 353,720,092.86 and 138,843,007.56

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Solution

The fourth proportional to 256,317,677.19, 353,720,092.86 and 138,843,007.56 is: 191,604,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,677.19 : 353,720,092.86 = 138,843,007.56 : x
  2. Step 2: Convert to fraction form
    256,317,677.19/353,720,092.86 = 138,843,007.56/x
  3. Step 3: Cross multiply
    256,317,677.19x = 353,720,092.86 × 138,843,007.56
  4. Step 4: Simplify right side
    256,317,677.19x = 49,111,561,527,084,888
  5. Step 5: Solve for x
    x = 49,111,561,527,084,888/256,317,677.19
  6. Step 6: Final answer
    x = 191,604,270.39

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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.