Home / 138,109,476.96-190,562,627.28-79,360,791.84

Finding the Fourth Proportional to 138,109,476.96, 190,562,627.28 and 79,360,791.84

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Solution

The fourth proportional to 138,109,476.96, 190,562,627.28 and 79,360,791.84 is: 109,501,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,109,476.96 : 190,562,627.28 = 79,360,791.84 : x
  2. Step 2: Convert to fraction form
    138,109,476.96/190,562,627.28 = 79,360,791.84/x
  3. Step 3: Cross multiply
    138,109,476.96x = 190,562,627.28 × 79,360,791.84
  4. Step 4: Simplify right side
    138,109,476.96x = 15,123,200,996,051,586
  5. Step 5: Solve for x
    x = 15,123,200,996,051,586/138,109,476.96
  6. Step 6: Final answer
    x = 109,501,544.20

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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.