Home / 319,819,994,268.72-479,729,962,271.84-140,745,981,009.57

Finding the Fourth Proportional to 319,819,994,268.72, 479,729,962,271.84 and 140,745,981,009.57

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Solution

The fourth proportional to 319,819,994,268.72, 479,729,962,271.84 and 140,745,981,009.57 is: 211,118,958,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,819,994,268.72 : 479,729,962,271.84 = 140,745,981,009.57 : x
  2. Step 2: Convert to fraction form
    319,819,994,268.72/479,729,962,271.84 = 140,745,981,009.57/x
  3. Step 3: Cross multiply
    319,819,994,268.72x = 479,729,962,271.84 × 140,745,981,009.57
  4. Step 4: Simplify right side
    319,819,994,268.72x = 67,520,064,159,634,134,401,024
  5. Step 5: Solve for x
    x = 67,520,064,159,634,134,401,024/319,819,994,268.72
  6. Step 6: Final answer
    x = 211,118,958,694.32

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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.