Home / 131,419,999.37-181,415,443.16-81,884,846.98

Finding the Fourth Proportional to 131,419,999.37, 181,415,443.16 and 81,884,846.98

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Solution

The fourth proportional to 131,419,999.37, 181,415,443.16 and 81,884,846.98 is: 113,035,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,419,999.37 : 181,415,443.16 = 81,884,846.98 : x
  2. Step 2: Convert to fraction form
    131,419,999.37/181,415,443.16 = 81,884,846.98/x
  3. Step 3: Cross multiply
    131,419,999.37x = 181,415,443.16 × 81,884,846.98
  4. Step 4: Simplify right side
    131,419,999.37x = 14,855,175,802,965,488
  5. Step 5: Solve for x
    x = 14,855,175,802,965,488/131,419,999.37
  6. Step 6: Final answer
    x = 113,035,883.99

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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.