Home / 18,732,907.02-28,101,288.08-7,071,101.12

Finding the Fourth Proportional to 18,732,907.02, 28,101,288.08 and 7,071,101.12

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Solution

The fourth proportional to 18,732,907.02, 28,101,288.08 and 7,071,101.12 is: 10,607,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,907.02 : 28,101,288.08 = 7,071,101.12 : x
  2. Step 2: Convert to fraction form
    18,732,907.02/28,101,288.08 = 7,071,101.12/x
  3. Step 3: Cross multiply
    18,732,907.02x = 28,101,288.08 × 7,071,101.12
  4. Step 4: Simplify right side
    18,732,907.02x = 198,707,049,624,826.75
  5. Step 5: Solve for x
    x = 198,707,049,624,826.75/18,732,907.02
  6. Step 6: Final answer
    x = 10,607,379.27

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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.