Home / 1,299,877,734.69-1,793,831,273.91-742,972,739.31

Finding the Fourth Proportional to 1,299,877,734.69, 1,793,831,273.91 and 742,972,739.31

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Solution

The fourth proportional to 1,299,877,734.69, 1,793,831,273.91 and 742,972,739.31 is: 1,025,302,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,877,734.69 : 1,793,831,273.91 = 742,972,739.31 : x
  2. Step 2: Convert to fraction form
    1,299,877,734.69/1,793,831,273.91 = 742,972,739.31/x
  3. Step 3: Cross multiply
    1,299,877,734.69x = 1,793,831,273.91 × 742,972,739.31
  4. Step 4: Simplify right side
    1,299,877,734.69x = 1,332,767,735,436,859,648
  5. Step 5: Solve for x
    x = 1,332,767,735,436,859,648/1,299,877,734.69
  6. Step 6: Final answer
    x = 1,025,302,380.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.