Home / 256,317,722.70-353,720,155.77-138,843,052.92

Finding the Fourth Proportional to 256,317,722.70, 353,720,155.77 and 138,843,052.92

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Solution

The fourth proportional to 256,317,722.70, 353,720,155.77 and 138,843,052.92 is: 191,604,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,722.70 : 353,720,155.77 = 138,843,052.92 : x
  2. Step 2: Convert to fraction form
    256,317,722.70/353,720,155.77 = 138,843,052.92/x
  3. Step 3: Cross multiply
    256,317,722.70x = 353,720,155.77 × 138,843,052.92
  4. Step 4: Simplify right side
    256,317,722.70x = 49,111,586,306,444,744
  5. Step 5: Solve for x
    x = 49,111,586,306,444,744/256,317,722.70
  6. Step 6: Final answer
    x = 191,604,333.05

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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.