Home / 53,253,913.59-79,883,149.73-20,912,813.96

Finding the Fourth Proportional to 53,253,913.59, 79,883,149.73 and 20,912,813.96

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Solution

The fourth proportional to 53,253,913.59, 79,883,149.73 and 20,912,813.96 is: 31,370,116.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,253,913.59 : 79,883,149.73 = 20,912,813.96 : x
  2. Step 2: Convert to fraction form
    53,253,913.59/79,883,149.73 = 20,912,813.96/x
  3. Step 3: Cross multiply
    53,253,913.59x = 79,883,149.73 × 20,912,813.96
  4. Step 4: Simplify right side
    53,253,913.59x = 1,670,581,448,338,334.25
  5. Step 5: Solve for x
    x = 1,670,581,448,338,334.25/53,253,913.59
  6. Step 6: Final answer
    x = 31,370,116.03

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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.