Home / 40,130,000.40-55,379,684.01-21,795,285.90

Finding the Fourth Proportional to 40,130,000.40, 55,379,684.01 and 21,795,285.90

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Solution

The fourth proportional to 40,130,000.40, 55,379,684.01 and 21,795,285.90 is: 30,077,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,130,000.40 : 55,379,684.01 = 21,795,285.90 : x
  2. Step 2: Convert to fraction form
    40,130,000.40/55,379,684.01 = 21,795,285.90/x
  3. Step 3: Cross multiply
    40,130,000.40x = 55,379,684.01 × 21,795,285.90
  4. Step 4: Simplify right side
    40,130,000.40x = 1,207,016,045,940,632
  5. Step 5: Solve for x
    x = 1,207,016,045,940,632/40,130,000.40
  6. Step 6: Final answer
    x = 30,077,648.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.