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Finding the Fourth Proportional to 662,634,405.80, 993,951,608.70 and 658,603,327.40

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Solution

The fourth proportional to 662,634,405.80, 993,951,608.70 and 658,603,327.40 is: 987,904,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,634,405.80 : 993,951,608.70 = 658,603,327.40 : x
  2. Step 2: Convert to fraction form
    662,634,405.80/993,951,608.70 = 658,603,327.40/x
  3. Step 3: Cross multiply
    662,634,405.80x = 993,951,608.70 × 658,603,327.40
  4. Step 4: Simplify right side
    662,634,405.80x = 654,619,836,764,402,816
  5. Step 5: Solve for x
    x = 654,619,836,764,402,816/662,634,405.80
  6. Step 6: Final answer
    x = 987,904,991.10

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1.5x scale

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.