Home / 521,108,157.62-781,687,376.07-171,346,482.07

Finding the Fourth Proportional to 521,108,157.62, 781,687,376.07 and 171,346,482.07

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Solution

The fourth proportional to 521,108,157.62, 781,687,376.07 and 171,346,482.07 is: 257,027,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,157.62 : 781,687,376.07 = 171,346,482.07 : x
  2. Step 2: Convert to fraction form
    521,108,157.62/781,687,376.07 = 171,346,482.07/x
  3. Step 3: Cross multiply
    521,108,157.62x = 781,687,376.07 × 171,346,482.07
  4. Step 4: Simplify right side
    521,108,157.62x = 133,939,381,964,215,168
  5. Step 5: Solve for x
    x = 133,939,381,964,215,168/521,108,157.62
  6. Step 6: Final answer
    x = 257,027,989.31

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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.