Home / 256,956,859.40-354,590,250.77-145,470,826.49

Finding the Fourth Proportional to 256,956,859.40, 354,590,250.77 and 145,470,826.49

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Solution

The fourth proportional to 256,956,859.40, 354,590,250.77 and 145,470,826.49 is: 200,743,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,956,859.40 : 354,590,250.77 = 145,470,826.49 : x
  2. Step 2: Convert to fraction form
    256,956,859.40/354,590,250.77 = 145,470,826.49/x
  3. Step 3: Cross multiply
    256,956,859.40x = 354,590,250.77 × 145,470,826.49
  4. Step 4: Simplify right side
    256,956,859.40x = 51,582,536,843,751,120
  5. Step 5: Solve for x
    x = 51,582,536,843,751,120/256,956,859.40
  6. Step 6: Final answer
    x = 200,743,957.43

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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.