Home / 131,511,335.76-181,511,313.48-79,308,870.48

Finding the Fourth Proportional to 131,511,335.76, 181,511,313.48 and 79,308,870.48

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Solution

The fourth proportional to 131,511,335.76, 181,511,313.48 and 79,308,870.48 is: 109,461,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,511,335.76 : 181,511,313.48 = 79,308,870.48 : x
  2. Step 2: Convert to fraction form
    131,511,335.76/181,511,313.48 = 79,308,870.48/x
  3. Step 3: Cross multiply
    131,511,335.76x = 181,511,313.48 × 79,308,870.48
  4. Step 4: Simplify right side
    131,511,335.76x = 14,395,457,251,439,998
  5. Step 5: Solve for x
    x = 14,395,457,251,439,998/131,511,335.76
  6. Step 6: Final answer
    x = 109,461,721.82

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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.