Home / 131,578,891.14-181,571,676.12-72,028,667.19

Finding the Fourth Proportional to 131,578,891.14, 181,571,676.12 and 72,028,667.19

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Solution

The fourth proportional to 131,578,891.14, 181,571,676.12 and 72,028,667.19 is: 99,395,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578,891.14 : 181,571,676.12 = 72,028,667.19 : x
  2. Step 2: Convert to fraction form
    131,578,891.14/181,571,676.12 = 72,028,667.19/x
  3. Step 3: Cross multiply
    131,578,891.14x = 181,571,676.12 × 72,028,667.19
  4. Step 4: Simplify right side
    131,578,891.14x = 13,078,365,830,930,506
  5. Step 5: Solve for x
    x = 13,078,365,830,930,506/131,578,891.14
  6. Step 6: Final answer
    x = 99,395,622.79

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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.