Home / 215,963,861.80-323,974,208.70-79,744,930.60

Finding the Fourth Proportional to 215,963,861.80, 323,974,208.70 and 79,744,930.60

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Solution

The fourth proportional to 215,963,861.80, 323,974,208.70 and 79,744,930.60 is: 119,627,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,963,861.80 : 323,974,208.70 = 79,744,930.60 : x
  2. Step 2: Convert to fraction form
    215,963,861.80/323,974,208.70 = 79,744,930.60/x
  3. Step 3: Cross multiply
    215,963,861.80x = 323,974,208.70 × 79,744,930.60
  4. Step 4: Simplify right side
    215,963,861.80x = 25,835,300,788,971,412
  5. Step 5: Solve for x
    x = 25,835,300,788,971,412/215,963,861.80
  6. Step 6: Final answer
    x = 119,627,888.54

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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.