Home / 138,109,477.96-190,562,628.66-79,360,792.84

Finding the Fourth Proportional to 138,109,477.96, 190,562,628.66 and 79,360,792.84

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Solution

The fourth proportional to 138,109,477.96, 190,562,628.66 and 79,360,792.84 is: 109,501,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,109,477.96 : 190,562,628.66 = 79,360,792.84 : x
  2. Step 2: Convert to fraction form
    138,109,477.96/190,562,628.66 = 79,360,792.84/x
  3. Step 3: Cross multiply
    138,109,477.96x = 190,562,628.66 × 79,360,792.84
  4. Step 4: Simplify right side
    138,109,477.96x = 15,123,201,296,132,108
  5. Step 5: Solve for x
    x = 15,123,201,296,132,108/138,109,477.96
  6. Step 6: Final answer
    x = 109,501,545.58

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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.