Home / 54,966,007.20-82,480,503.60-20,911,792.80

Finding the Fourth Proportional to 54,966,007.20, 82,480,503.60 and 20,911,792.80

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Solution

The fourth proportional to 54,966,007.20, 82,480,503.60 and 20,911,792.80 is: 31,379,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,966,007.20 : 82,480,503.60 = 20,911,792.80 : x
  2. Step 2: Convert to fraction form
    54,966,007.20/82,480,503.60 = 20,911,792.80/x
  3. Step 3: Cross multiply
    54,966,007.20x = 82,480,503.60 × 20,911,792.80
  4. Step 4: Simplify right side
    54,966,007.20x = 1,724,815,201,322,854
  5. Step 5: Solve for x
    x = 1,724,815,201,322,854/54,966,007.20
  6. Step 6: Final answer
    x = 31,379,670.62

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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.