Home / 521,108,159.37-781,687,378.71-171,346,483.83

Finding the Fourth Proportional to 521,108,159.37, 781,687,378.71 and 171,346,483.83

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Solution

The fourth proportional to 521,108,159.37, 781,687,378.71 and 171,346,483.83 is: 257,027,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,159.37 : 781,687,378.71 = 171,346,483.83 : x
  2. Step 2: Convert to fraction form
    521,108,159.37/781,687,378.71 = 171,346,483.83/x
  3. Step 3: Cross multiply
    521,108,159.37x = 781,687,378.71 × 171,346,483.83
  4. Step 4: Simplify right side
    521,108,159.37x = 133,939,383,796,248,112
  5. Step 5: Solve for x
    x = 133,939,383,796,248,112/521,108,159.37
  6. Step 6: Final answer
    x = 257,027,991.96

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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.