Home / 138,516,601.28-191,158,536.64-76,635,932.16

Finding the Fourth Proportional to 138,516,601.28, 191,158,536.64 and 76,635,932.16

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Solution

The fourth proportional to 138,516,601.28, 191,158,536.64 and 76,635,932.16 is: 105,760,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,516,601.28 : 191,158,536.64 = 76,635,932.16 : x
  2. Step 2: Convert to fraction form
    138,516,601.28/191,158,536.64 = 76,635,932.16/x
  3. Step 3: Cross multiply
    138,516,601.28x = 191,158,536.64 × 76,635,932.16
  4. Step 4: Simplify right side
    138,516,601.28x = 14,649,612,645,747,912
  5. Step 5: Solve for x
    x = 14,649,612,645,747,912/138,516,601.28
  6. Step 6: Final answer
    x = 105,760,699.51

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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.