Home / 138,114,656.10-190,584,659.22-76,231,008.90

Finding the Fourth Proportional to 138,114,656.10, 190,584,659.22 and 76,231,008.90

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Solution

The fourth proportional to 138,114,656.10, 190,584,659.22 and 76,231,008.90 is: 105,191,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,114,656.10 : 190,584,659.22 = 76,231,008.90 : x
  2. Step 2: Convert to fraction form
    138,114,656.10/190,584,659.22 = 76,231,008.90/x
  3. Step 3: Cross multiply
    138,114,656.10x = 190,584,659.22 × 76,231,008.90
  4. Step 4: Simplify right side
    138,114,656.10x = 14,528,460,853,203,288
  5. Step 5: Solve for x
    x = 14,528,460,853,203,288/138,114,656.10
  6. Step 6: Final answer
    x = 105,191,304.55

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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.