Home / 1,438,939,772.90-2,158,615,554.15-443,045,065.91

Finding the Fourth Proportional to 1,438,939,772.90, 2,158,615,554.15 and 443,045,065.91

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Solution

The fourth proportional to 1,438,939,772.90, 2,158,615,554.15 and 443,045,065.91 is: 664,630,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,939,772.90 : 2,158,615,554.15 = 443,045,065.91 : x
  2. Step 2: Convert to fraction form
    1,438,939,772.90/2,158,615,554.15 = 443,045,065.91/x
  3. Step 3: Cross multiply
    1,438,939,772.90x = 2,158,615,554.15 × 443,045,065.91
  4. Step 4: Simplify right side
    1,438,939,772.90x = 956,363,970,451,944,832
  5. Step 5: Solve for x
    x = 956,363,970,451,944,832/1,438,939,772.90
  6. Step 6: Final answer
    x = 664,630,993.23

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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.