Home / 422,679,373.98-634,170,086.01-257,019,920.34

Finding the Fourth Proportional to 422,679,373.98, 634,170,086.01 and 257,019,920.34

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Solution

The fourth proportional to 422,679,373.98, 634,170,086.01 and 257,019,920.34 is: 385,621,714.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,679,373.98 : 634,170,086.01 = 257,019,920.34 : x
  2. Step 2: Convert to fraction form
    422,679,373.98/634,170,086.01 = 257,019,920.34/x
  3. Step 3: Cross multiply
    422,679,373.98x = 634,170,086.01 × 257,019,920.34
  4. Step 4: Simplify right side
    422,679,373.98x = 162,994,344,988,301,152
  5. Step 5: Solve for x
    x = 162,994,344,988,301,152/422,679,373.98
  6. Step 6: Final answer
    x = 385,621,714.76

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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.