Home / 131,578,908.28-181,571,699.77-72,028,684.37

Finding the Fourth Proportional to 131,578,908.28, 181,571,699.77 and 72,028,684.37

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Solution

The fourth proportional to 131,578,908.28, 181,571,699.77 and 72,028,684.37 is: 99,395,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578,908.28 : 181,571,699.77 = 72,028,684.37 : x
  2. Step 2: Convert to fraction form
    131,578,908.28/181,571,699.77 = 72,028,684.37/x
  3. Step 3: Cross multiply
    131,578,908.28x = 181,571,699.77 × 72,028,684.37
  4. Step 4: Simplify right side
    131,578,908.28x = 13,078,370,652,915,048
  5. Step 5: Solve for x
    x = 13,078,370,652,915,048/131,578,908.28
  6. Step 6: Final answer
    x = 99,395,646.49

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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.