Home / 521,520,782,481.15-782,281,173,721.73-186,146,648,951.55

Finding the Fourth Proportional to 521,520,782,481.15, 782,281,173,721.73 and 186,146,648,951.55

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Solution

The fourth proportional to 521,520,782,481.15, 782,281,173,721.73 and 186,146,648,951.55 is: 279,219,973,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,782,481.15 : 782,281,173,721.73 = 186,146,648,951.55 : x
  2. Step 2: Convert to fraction form
    521,520,782,481.15/782,281,173,721.73 = 186,146,648,951.55/x
  3. Step 3: Cross multiply
    521,520,782,481.15x = 782,281,173,721.73 × 186,146,648,951.55
  4. Step 4: Simplify right side
    521,520,782,481.15x = 145,619,019,026,185,356,050,432
  5. Step 5: Solve for x
    x = 145,619,019,026,185,356,050,432/521,520,782,481.15
  6. Step 6: Final answer
    x = 279,219,973,427.33

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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.