Home / 21,306,172.80-31,959,259.20-9,362,236.80

Finding the Fourth Proportional to 21,306,172.80, 31,959,259.20 and 9,362,236.80

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Solution

The fourth proportional to 21,306,172.80, 31,959,259.20 and 9,362,236.80 is: 14,043,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306,172.80 : 31,959,259.20 = 9,362,236.80 : x
  2. Step 2: Convert to fraction form
    21,306,172.80/31,959,259.20 = 9,362,236.80/x
  3. Step 3: Cross multiply
    21,306,172.80x = 31,959,259.20 × 9,362,236.80
  4. Step 4: Simplify right side
    21,306,172.80x = 299,210,152,582,978.56
  5. Step 5: Solve for x
    x = 299,210,152,582,978.56/21,306,172.80
  6. Step 6: Final answer
    x = 14,043,355.20

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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.