Home / 689,634,597.80-1,034,451,896.70-361,983,506.60

Finding the Fourth Proportional to 689,634,597.80, 1,034,451,896.70 and 361,983,506.60

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Solution

The fourth proportional to 689,634,597.80, 1,034,451,896.70 and 361,983,506.60 is: 542,975,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,634,597.80 : 1,034,451,896.70 = 361,983,506.60 : x
  2. Step 2: Convert to fraction form
    689,634,597.80/1,034,451,896.70 = 361,983,506.60/x
  3. Step 3: Cross multiply
    689,634,597.80x = 1,034,451,896.70 × 361,983,506.60
  4. Step 4: Simplify right side
    689,634,597.80x = 374,454,524,976,487,040
  5. Step 5: Solve for x
    x = 374,454,524,976,487,040/689,634,597.80
  6. Step 6: Final answer
    x = 542,975,259.90

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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.