Home / 21,181,739.40-31,777,362.18-6,805,626.12

Finding the Fourth Proportional to 21,181,739.40, 31,777,362.18 and 6,805,626.12

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Solution

The fourth proportional to 21,181,739.40, 31,777,362.18 and 6,805,626.12 is: 10,209,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,739.40 : 31,777,362.18 = 6,805,626.12 : x
  2. Step 2: Convert to fraction form
    21,181,739.40/31,777,362.18 = 6,805,626.12/x
  3. Step 3: Cross multiply
    21,181,739.40x = 31,777,362.18 × 6,805,626.12
  4. Step 4: Simplify right side
    21,181,739.40x = 216,264,846,076,908.16
  5. Step 5: Solve for x
    x = 216,264,846,076,908.16/21,181,739.40
  6. Step 6: Final answer
    x = 10,209,966.33

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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.