Home / 1,438,939,141.48-2,158,614,606.87-443,044,434.74

Finding the Fourth Proportional to 1,438,939,141.48, 2,158,614,606.87 and 443,044,434.74

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Solution

The fourth proportional to 1,438,939,141.48, 2,158,614,606.87 and 443,044,434.74 is: 664,630,046.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,939,141.48 : 2,158,614,606.87 = 443,044,434.74 : x
  2. Step 2: Convert to fraction form
    1,438,939,141.48/2,158,614,606.87 = 443,044,434.74/x
  3. Step 3: Cross multiply
    1,438,939,141.48x = 2,158,614,606.87 × 443,044,434.74
  4. Step 4: Simplify right side
    1,438,939,141.48x = 956,362,188,327,622,912
  5. Step 5: Solve for x
    x = 956,362,188,327,622,912/1,438,939,141.48
  6. Step 6: Final answer
    x = 664,630,046.37

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1.5x scale

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.