Home / 81,566,217.29-122,346,007.56-20,153,829.39

Finding the Fourth Proportional to 81,566,217.29, 122,346,007.56 and 20,153,829.39

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Solution

The fourth proportional to 81,566,217.29, 122,346,007.56 and 20,153,829.39 is: 30,229,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566,217.29 : 122,346,007.56 = 20,153,829.39 : x
  2. Step 2: Convert to fraction form
    81,566,217.29/122,346,007.56 = 20,153,829.39/x
  3. Step 3: Cross multiply
    81,566,217.29x = 122,346,007.56 × 20,153,829.39
  4. Step 4: Simplify right side
    81,566,217.29x = 2,465,740,562,911,890.50
  5. Step 5: Solve for x
    x = 2,465,740,562,911,890.50/81,566,217.29
  6. Step 6: Final answer
    x = 30,229,924.16

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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.