Home / 119,782,915.20-165,300,921.24-64,778,771.76

Finding the Fourth Proportional to 119,782,915.20, 165,300,921.24 and 64,778,771.76

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Solution

The fourth proportional to 119,782,915.20, 165,300,921.24 and 64,778,771.76 is: 89,394,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782,915.20 : 165,300,921.24 = 64,778,771.76 : x
  2. Step 2: Convert to fraction form
    119,782,915.20/165,300,921.24 = 64,778,771.76/x
  3. Step 3: Cross multiply
    119,782,915.20x = 165,300,921.24 × 64,778,771.76
  4. Step 4: Simplify right side
    119,782,915.20x = 10,707,990,648,723,696
  5. Step 5: Solve for x
    x = 10,707,990,648,723,696/119,782,915.20
  6. Step 6: Final answer
    x = 89,394,974.49

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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.