Home / 662,606,492.80-992,775,998.40-419,985,961.60

Finding the Fourth Proportional to 662,606,492.80, 992,775,998.40 and 419,985,961.60

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Solution

The fourth proportional to 662,606,492.80, 992,775,998.40 and 419,985,961.60 is: 629,260,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,606,492.80 : 992,775,998.40 = 419,985,961.60 : x
  2. Step 2: Convert to fraction form
    662,606,492.80/992,775,998.40 = 419,985,961.60/x
  3. Step 3: Cross multiply
    662,606,492.80x = 992,775,998.40 × 419,985,961.60
  4. Step 4: Simplify right side
    662,606,492.80x = 416,951,982,341,424,064
  5. Step 5: Solve for x
    x = 416,951,982,341,424,064/662,606,492.80
  6. Step 6: Final answer
    x = 629,260,333.05

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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.