Home / 345,278,645.03-476,478,954.74-188,642,380.79

Finding the Fourth Proportional to 345,278,645.03, 476,478,954.74 and 188,642,380.79

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Solution

The fourth proportional to 345,278,645.03, 476,478,954.74 and 188,642,380.79 is: 260,323,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,278,645.03 : 476,478,954.74 = 188,642,380.79 : x
  2. Step 2: Convert to fraction form
    345,278,645.03/476,478,954.74 = 188,642,380.79/x
  3. Step 3: Cross multiply
    345,278,645.03x = 476,478,954.74 × 188,642,380.79
  4. Step 4: Simplify right side
    345,278,645.03x = 89,884,124,416,573,472
  5. Step 5: Solve for x
    x = 89,884,124,416,573,472/345,278,645.03
  6. Step 6: Final answer
    x = 260,323,439.38

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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.