Home / 138,875,482.80-208,100,647.80-131,222,732.40

Finding the Fourth Proportional to 138,875,482.80, 208,100,647.80 and 131,222,732.40

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Solution

The fourth proportional to 138,875,482.80, 208,100,647.80 and 131,222,732.40 is: 196,633,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,875,482.80 : 208,100,647.80 = 131,222,732.40 : x
  2. Step 2: Convert to fraction form
    138,875,482.80/208,100,647.80 = 131,222,732.40/x
  3. Step 3: Cross multiply
    138,875,482.80x = 208,100,647.80 × 131,222,732.40
  4. Step 4: Simplify right side
    138,875,482.80x = 27,307,535,618,526,052
  5. Step 5: Solve for x
    x = 27,307,535,618,526,052/138,875,482.80
  6. Step 6: Final answer
    x = 196,633,236.25

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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.