Home / 138,370,269.56-190,941,871.74-79,623,454.64

Finding the Fourth Proportional to 138,370,269.56, 190,941,871.74 and 79,623,454.64

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Solution

The fourth proportional to 138,370,269.56, 190,941,871.74 and 79,623,454.64 is: 109,875,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,370,269.56 : 190,941,871.74 = 79,623,454.64 : x
  2. Step 2: Convert to fraction form
    138,370,269.56/190,941,871.74 = 79,623,454.64/x
  3. Step 3: Cross multiply
    138,370,269.56x = 190,941,871.74 × 79,623,454.64
  4. Step 4: Simplify right side
    138,370,269.56x = 15,203,451,463,366,588
  5. Step 5: Solve for x
    x = 15,203,451,463,366,588/138,370,269.56
  6. Step 6: Final answer
    x = 109,875,130.78

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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.