Home / 1,308,103,889.67-1,961,365,512.24-521,278,589.07

Finding the Fourth Proportional to 1,308,103,889.67, 1,961,365,512.24 and 521,278,589.07

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Solution

The fourth proportional to 1,308,103,889.67, 1,961,365,512.24 and 521,278,589.07 is: 781,602,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,103,889.67 : 1,961,365,512.24 = 521,278,589.07 : x
  2. Step 2: Convert to fraction form
    1,308,103,889.67/1,961,365,512.24 = 521,278,589.07/x
  3. Step 3: Cross multiply
    1,308,103,889.67x = 1,961,365,512.24 × 521,278,589.07
  4. Step 4: Simplify right side
    1,308,103,889.67x = 1,022,417,846,871,025,024
  5. Step 5: Solve for x
    x = 1,022,417,846,871,025,024/1,308,103,889.67
  6. Step 6: Final answer
    x = 781,602,940.67

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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.