Home / 55,012,111.07-82,520,907.64-20,936,097.95

Finding the Fourth Proportional to 55,012,111.07, 82,520,907.64 and 20,936,097.95

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Solution

The fourth proportional to 55,012,111.07, 82,520,907.64 and 20,936,097.95 is: 31,405,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012,111.07 : 82,520,907.64 = 20,936,097.95 : x
  2. Step 2: Convert to fraction form
    55,012,111.07/82,520,907.64 = 20,936,097.95/x
  3. Step 3: Cross multiply
    55,012,111.07x = 82,520,907.64 × 20,936,097.95
  4. Step 4: Simplify right side
    55,012,111.07x = 1,727,665,804,808,998.75
  5. Step 5: Solve for x
    x = 1,727,665,804,808,998.75/55,012,111.07
  6. Step 6: Final answer
    x = 31,405,190.08

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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.