Home / 8,711,790.76-12,020,500.74-5,089,418.92

Finding the Fourth Proportional to 8,711,790.76, 12,020,500.74 and 5,089,418.92

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Solution

The fourth proportional to 8,711,790.76, 12,020,500.74 and 5,089,418.92 is: 7,022,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711,790.76 : 12,020,500.74 = 5,089,418.92 : x
  2. Step 2: Convert to fraction form
    8,711,790.76/12,020,500.74 = 5,089,418.92/x
  3. Step 3: Cross multiply
    8,711,790.76x = 12,020,500.74 × 5,089,418.92
  4. Step 4: Simplify right side
    8,711,790.76x = 61,177,363,894,030
  5. Step 5: Solve for x
    x = 61,177,363,894,030/8,711,790.76
  6. Step 6: Final answer
    x = 7,022,363.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.