Home / 138,155,749.16-190,651,133.06-76,274,963.24

Finding the Fourth Proportional to 138,155,749.16, 190,651,133.06 and 76,274,963.24

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Solution

The fourth proportional to 138,155,749.16, 190,651,133.06 and 76,274,963.24 is: 105,257,350.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,155,749.16 : 190,651,133.06 = 76,274,963.24 : x
  2. Step 2: Convert to fraction form
    138,155,749.16/190,651,133.06 = 76,274,963.24/x
  3. Step 3: Cross multiply
    138,155,749.16x = 190,651,133.06 × 76,274,963.24
  4. Step 4: Simplify right side
    138,155,749.16x = 14,541,908,165,815,848
  5. Step 5: Solve for x
    x = 14,541,908,165,815,848/138,155,749.16
  6. Step 6: Final answer
    x = 105,257,350.88

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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.