Home / 219,235,717.30-328,926,993.21-71,690,081.38

Finding the Fourth Proportional to 219,235,717.30, 328,926,993.21 and 71,690,081.38

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Solution

The fourth proportional to 219,235,717.30, 328,926,993.21 and 71,690,081.38 is: 107,559,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,235,717.30 : 328,926,993.21 = 71,690,081.38 : x
  2. Step 2: Convert to fraction form
    219,235,717.30/328,926,993.21 = 71,690,081.38/x
  3. Step 3: Cross multiply
    219,235,717.30x = 328,926,993.21 × 71,690,081.38
  4. Step 4: Simplify right side
    219,235,717.30x = 23,580,802,911,303,604
  5. Step 5: Solve for x
    x = 23,580,802,911,303,604/219,235,717.30
  6. Step 6: Final answer
    x = 107,559,129.51

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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.