Home / 120,205,047.06-180,338,657.49-70,391,936.48

Finding the Fourth Proportional to 120,205,047.06, 180,338,657.49 and 70,391,936.48

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Solution

The fourth proportional to 120,205,047.06, 180,338,657.49 and 70,391,936.48 is: 105,606,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,205,047.06 : 180,338,657.49 = 70,391,936.48 : x
  2. Step 2: Convert to fraction form
    120,205,047.06/180,338,657.49 = 70,391,936.48/x
  3. Step 3: Cross multiply
    120,205,047.06x = 180,338,657.49 × 70,391,936.48
  4. Step 4: Simplify right side
    120,205,047.06x = 12,694,387,322,022,862
  5. Step 5: Solve for x
    x = 12,694,387,322,022,862/120,205,047.06
  6. Step 6: Final answer
    x = 105,606,109.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.