Home / 55,012,108.72-82,520,904-20,936,095.60

Finding the Fourth Proportional to 55,012,108.72, 82,520,904 and 20,936,095.60

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Solution

The fourth proportional to 55,012,108.72, 82,520,904 and 20,936,095.60 is: 31,405,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012,108.72 : 82,520,904 = 20,936,095.60 : x
  2. Step 2: Convert to fraction form
    55,012,108.72/82,520,904 = 20,936,095.60/x
  3. Step 3: Cross multiply
    55,012,108.72x = 82,520,904 × 20,936,095.60
  4. Step 4: Simplify right side
    55,012,108.72x = 1,727,665,535,142,422.50
  5. Step 5: Solve for x
    x = 1,727,665,535,142,422.50/55,012,108.72
  6. Step 6: Final answer
    x = 31,405,186.52

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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.