Home / 256,868,819.52-354,478,973.47-139,394,149.76

Finding the Fourth Proportional to 256,868,819.52, 354,478,973.47 and 139,394,149.76

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Solution

The fourth proportional to 256,868,819.52, 354,478,973.47 and 139,394,149.76 is: 192,363,928.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,868,819.52 : 354,478,973.47 = 139,394,149.76 : x
  2. Step 2: Convert to fraction form
    256,868,819.52/354,478,973.47 = 139,394,149.76/x
  3. Step 3: Cross multiply
    256,868,819.52x = 354,478,973.47 × 139,394,149.76
  4. Step 4: Simplify right side
    256,868,819.52x = 49,412,295,112,875,856
  5. Step 5: Solve for x
    x = 49,412,295,112,875,856/256,868,819.52
  6. Step 6: Final answer
    x = 192,363,928.04

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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.