Home / 1,438,939,617.72-2,158,615,322.14-443,044,910.12

Finding the Fourth Proportional to 1,438,939,617.72, 2,158,615,322.14 and 443,044,910.12

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Solution

The fourth proportional to 1,438,939,617.72, 2,158,615,322.14 and 443,044,910.12 is: 664,630,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,939,617.72 : 2,158,615,322.14 = 443,044,910.12 : x
  2. Step 2: Convert to fraction form
    1,438,939,617.72/2,158,615,322.14 = 443,044,910.12/x
  3. Step 3: Cross multiply
    1,438,939,617.72x = 2,158,615,322.14 × 443,044,910.12
  4. Step 4: Simplify right side
    1,438,939,617.72x = 956,363,531,381,171,072
  5. Step 5: Solve for x
    x = 956,363,531,381,171,072/1,438,939,617.72
  6. Step 6: Final answer
    x = 664,630,759.76

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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.