Home / 319,819,994,266.72-479,729,962,268.85-140,745,981,007.57

Finding the Fourth Proportional to 319,819,994,266.72, 479,729,962,268.85 and 140,745,981,007.57

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Solution

The fourth proportional to 319,819,994,266.72, 479,729,962,268.85 and 140,745,981,007.57 is: 211,118,958,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,819,994,266.72 : 479,729,962,268.85 = 140,745,981,007.57 : x
  2. Step 2: Convert to fraction form
    319,819,994,266.72/479,729,962,268.85 = 140,745,981,007.57/x
  3. Step 3: Cross multiply
    319,819,994,266.72x = 479,729,962,268.85 × 140,745,981,007.57
  4. Step 4: Simplify right side
    319,819,994,266.72x = 67,520,064,158,253,830,897,664
  5. Step 5: Solve for x
    x = 67,520,064,158,253,830,897,664/319,819,994,266.72
  6. Step 6: Final answer
    x = 211,118,958,691.32

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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.