Home / 256,648,363.20-384,925,305.60-159,430,089.60

Finding the Fourth Proportional to 256,648,363.20, 384,925,305.60 and 159,430,089.60

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Solution

The fourth proportional to 256,648,363.20, 384,925,305.60 and 159,430,089.60 is: 239,115,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,648,363.20 : 384,925,305.60 = 159,430,089.60 : x
  2. Step 2: Convert to fraction form
    256,648,363.20/384,925,305.60 = 159,430,089.60/x
  3. Step 3: Cross multiply
    256,648,363.20x = 384,925,305.60 × 159,430,089.60
  4. Step 4: Simplify right side
    256,648,363.20x = 61,368,675,961,115,384
  5. Step 5: Solve for x
    x = 61,368,675,961,115,384/256,648,363.20
  6. Step 6: Final answer
    x = 239,115,789.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.