Home / 1,972,535,971.32-2,959,184,628.81-644,206,906.53

Finding the Fourth Proportional to 1,972,535,971.32, 2,959,184,628.81 and 644,206,906.53

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Solution

The fourth proportional to 1,972,535,971.32, 2,959,184,628.81 and 644,206,906.53 is: 966,434,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,535,971.32 : 2,959,184,628.81 = 644,206,906.53 : x
  2. Step 2: Convert to fraction form
    1,972,535,971.32/2,959,184,628.81 = 644,206,906.53/x
  3. Step 3: Cross multiply
    1,972,535,971.32x = 2,959,184,628.81 × 644,206,906.53
  4. Step 4: Simplify right side
    1,972,535,971.32x = 1,906,327,175,576,816,384
  5. Step 5: Solve for x
    x = 1,906,327,175,576,816,384/1,972,535,971.32
  6. Step 6: Final answer
    x = 966,434,682.71

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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.