Home / 437,486,436.80-656,229,655.20-418,847,998.40

Finding the Fourth Proportional to 437,486,436.80, 656,229,655.20 and 418,847,998.40

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Solution

The fourth proportional to 437,486,436.80, 656,229,655.20 and 418,847,998.40 is: 628,271,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,486,436.80 : 656,229,655.20 = 418,847,998.40 : x
  2. Step 2: Convert to fraction form
    437,486,436.80/656,229,655.20 = 418,847,998.40/x
  3. Step 3: Cross multiply
    437,486,436.80x = 656,229,655.20 × 418,847,998.40
  4. Step 4: Simplify right side
    437,486,436.80x = 274,860,477,571,242,144
  5. Step 5: Solve for x
    x = 274,860,477,571,242,144/437,486,436.80
  6. Step 6: Final answer
    x = 628,271,997.60

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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.