Home / 290,020,336.76-435,026,245.61-71,670,672.96

Finding the Fourth Proportional to 290,020,336.76, 435,026,245.61 and 71,670,672.96

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Solution

The fourth proportional to 290,020,336.76, 435,026,245.61 and 71,670,672.96 is: 107,504,956.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,336.76 : 435,026,245.61 = 71,670,672.96 : x
  2. Step 2: Convert to fraction form
    290,020,336.76/435,026,245.61 = 71,670,672.96/x
  3. Step 3: Cross multiply
    290,020,336.76x = 435,026,245.61 × 71,670,672.96
  4. Step 4: Simplify right side
    290,020,336.76x = 31,178,623,777,772,592
  5. Step 5: Solve for x
    x = 31,178,623,777,772,592/290,020,336.76
  6. Step 6: Final answer
    x = 107,504,956.81

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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.