Home / 138,786,623.56-191,526,665.70-76,907,995.48

Finding the Fourth Proportional to 138,786,623.56, 191,526,665.70 and 76,907,995.48

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Solution

The fourth proportional to 138,786,623.56, 191,526,665.70 and 76,907,995.48 is: 106,133,657.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786,623.56 : 191,526,665.70 = 76,907,995.48 : x
  2. Step 2: Convert to fraction form
    138,786,623.56/191,526,665.70 = 76,907,995.48/x
  3. Step 3: Cross multiply
    138,786,623.56x = 191,526,665.70 × 76,907,995.48
  4. Step 4: Simplify right side
    138,786,623.56x = 14,729,931,939,955,070
  5. Step 5: Solve for x
    x = 14,729,931,939,955,070/138,786,623.56
  6. Step 6: Final answer
    x = 106,133,657.28

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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.