Home / 1,079,090,001.18-1,618,639,200.81-261,200,989.98

Finding the Fourth Proportional to 1,079,090,001.18, 1,618,639,200.81 and 261,200,989.98

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Solution

The fourth proportional to 1,079,090,001.18, 1,618,639,200.81 and 261,200,989.98 is: 391,802,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,090,001.18 : 1,618,639,200.81 = 261,200,989.98 : x
  2. Step 2: Convert to fraction form
    1,079,090,001.18/1,618,639,200.81 = 261,200,989.98/x
  3. Step 3: Cross multiply
    1,079,090,001.18x = 1,618,639,200.81 × 261,200,989.98
  4. Step 4: Simplify right side
    1,079,090,001.18x = 422,790,161,672,008,000
  5. Step 5: Solve for x
    x = 422,790,161,672,008,000/1,079,090,001.18
  6. Step 6: Final answer
    x = 391,802,501.38

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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.